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Heavy Metal Index
Black and pale peppercorns, turmeric powder and cinnamon sticks illustrating cinnamon ingredient context.

Heavy metals in Cinnamon

Lead, chromium, cadmium and other metals in cinnamon: monitoring results, cassia and Ceylon, sticks and ground, origins, limits, adulteration, testing and controls.

Quick read

Lead is the metal to check in cinnamon: about one in eight monitoring results exceeds the EU limit of 2,000 µg/kg, and adulteration with lead chromate caused a 2023 outbreak.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source →3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

Cinnamon overview

Lead is the metal that decides most cinnamon questions. In 808 WHO GEMS/Food lead results for cinnamon bark from 2003 to 2024, the median was about 350 µg/kg and 103 results (13%) were above 2,000 µg/kg, the EU maximum for bark spices.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source → Codex set a 2,500 µg/kg lead limit for dried bark spices in 2025, and China allows 3,000 µg/kg for cassia bark.7Codex Alimentarius Commission · 1995General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995)Codex Alimentarius (Joint FAO/WHO Food Standards Programme)Read source →8National Health Commission, State Administration for Market Regulation · 2025GB 2762-2025: National Food Safety Standard — Maximum Levels of Contaminants in FoodsNational Food Safety Standard of the People’s Republic of ChinaRead source →

Retail surveys show the same wide spread. Ten powdered products bought in Queensland ranged from 150 to 7,000 µg/kg lead, 37 bulk samples from Casablanca averaged 2,050 µg/kg, and five cassia samples from Iraq averaged 4,159 µg/kg, while single samples from Indonesia and Serbia held 23 and 310 µg/kg.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →10Cicero N, Gervasi T, Durazzo A, Lucarini M, Macrì A, Nava V, Giarratana F, Tardugno R, Vadalà R, Santini A · 2022Mineral and Microbiological Analysis of Spices and Aromatic HerbsFoodsRead source →11Savić S, Petrović S, Petronijević M, Cvetanović A, Petronijević Ž · 2019Determination of the mineral content of spices by ICP-OESAdvanced TechnologiesRead source → Cadmium is usually a few hundred µg/kg, and chromium, nickel and aluminium are high enough in some products to matter alongside lead.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →

A separate problem is deliberate adulteration. In 2023 cinnamon ground in Ecuador and contaminated with lead chromate reached the United States in apple cinnamon pouches that held 1,900–5,800 µg/kg lead as sold, and 566 cases of elevated blood lead were reported in 44 states, the District of Columbia and Puerto Rico.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source → Those results are kept apart from the ordinary occurrence data on this page. For a buyer, the supported priority is a lot-specific result for lead and chromium together, with species and form recorded; a species label or an origin alone does not settle it.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →

What counts as cinnamon

This page covers dried cinnamon bark, sold ground or as sticks and pieces, from any Cinnamomum species.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Cassia (C. cassia and related species, including Saigon and Indonesian cinnamon) and Ceylon cinnamon (C. verum, also called C. zeylanicum or true cinnamon) are labelled separately wherever a source names the species, and cinnamon of unstated species stays its own group.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source →

Species labels are rarely verified. An Australian survey labelled all ten products C. verum although two came from China and two from Vietnam, where cassia is the usual crop, and no study in the ledger authenticated the species analytically.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Cinnamon flowers, cinnamon sugar, blended teas, cinnamon-flavoured cereals and bakery, infant foods that list cinnamon, and purging cassia (Cassia fistula, a different plant) are outside this scope.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →14U.S. House of Representatives, Committee on Oversight and Reform, Subcommittee on Economic and Consumer Policy · 2021Baby Foods Are Tainted with Dangerous Levels of Arsenic, Lead, Cadmium, and MercuryStaff ReportRead source →

Place names need the same care. A WHO GEMS/Food region is the region that reported the result, not where the bark grew, and most surveys report where the product was bought.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source → Finished applesauce from the 2023 outbreak is a different material: its lead was measured in the puree, not in the cinnamon.12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source →

Heavy metal contamination profile of cinnamon

The table holds every cinnamon result extracted from 17 monitoring, survey, investigation and regulatory-science sources: one row for each statistic a source reports for a subgroup and metal, so a mean, a range and a single-sample value appear as separate rows.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source → Ratings place a mean, median or single result against a pooled HMI cinnamon reference built from WHO GEMS/Food subgroup medians and the per-sample results printed by studies of products bought in Australia, Italy, Lebanon, Serbia, Saudi Arabia and Bangladesh; non-detects remain intervals and are never read as zero.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →10Cicero N, Gervasi T, Durazzo A, Lucarini M, Macrì A, Nava V, Giarratana F, Tardugno R, Vadalà R, Santini A · 2022Mineral and Microbiological Analysis of Spices and Aromatic HerbsFoodsRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source →15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source →11Savić S, Petrović S, Petronijević M, Cvetanović A, Petronijević Ž · 2019Determination of the mineral content of spices by ICP-OESAdvanced TechnologiesRead source →16Ammar HR, Saleh SM, Sivasankaran S, Albadri AEAE, Al-Mufadi FA · 2023Investigation of Element Migration from Aluminum Cooking Pots Using ICP-MSApplied Sciences (MDPI)Read source →17Islam MS, Chowdhury AI, Shill LC, Reza S, Alam MR · 2023Heavy Metals Induced Health Risk Assessment Through Consumption of Selected Commercially Available Spices in Noakhali District of BangladeshmedRxiv (preprint)Read source → Rows that failed a check against their own paper stay visible with the reason and are not compared, and rows from the outbreak measure applesauce, not cinnamon.5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source →17Islam MS, Chowdhury AI, Shill LC, Reza S, Alam MR · 2023Heavy Metals Induced Health Risk Assessment Through Consumption of Selected Commercially Available Spices in Noakhali District of BangladeshmedRxiv (preprint)Read source →

Comparison methods and scope

Each row is one statistic a source reports for one subgroup and metal; a mean, median and range from the same samples are separate rows. Cassia, Ceylon (C. verum) and cinnamon of unstated species are labelled separately, as are ground and whole forms. Ratings place a reported mean, median or sample result against a pooled HMI cinnamon reference built from every compatible sampling family. Same-study contrasts compare a subgroup with its own study’s total or lowest subgroup. Rows from the 2023–2024 applesauce outbreak measure the finished food, not cinnamon, and are not rated. Held rows failed a check against their own paper and are shown but not compared.

About this table
Food formCollection scopeFindingComparisonEvidence
Cinnamon findings from every extracted survey, investigation and monitoring dataset, in µg/kg with each source’s statistic, species label, form, censoring and sampling frame retained.
Food formCollection scopeFinding (µg/kg)ComparisonEvidence
37 findings · 12 studies · 5 spread figures folded in
Species not statedWHO GEMS/FoodWHO region EMRO2013–2022median.
Ceylon (C. verum)WHO GEMS/FoodWHO region EURO2003–2016median.
Species not statedWHO GEMS/FoodWHO region EURO2010–2023median.
CassiaWHO GEMS/FoodWHO region PAHO2023median.
Ceylon (C. verum)WHO GEMS/FoodWHO region PAHO2022median.
Species not statedWHO GEMS/FoodWHO region PAHO2011–2018median.
CassiaWHO GEMS/FoodWHO region SEARO2018–2019median.
Ceylon (C. verum)WHO GEMS/FoodWHO region SEARO2018median.
Species not statedWHO GEMS/FoodWHO region SEARO2011–2019median.
CassiaWHO GEMS/FoodWHO region WPRO2011–2020median.
Species not statedWHO GEMS/FoodWHO region WPRO2012–2016median.
Species not statedAmmar et al. 2023raw ingredient cinnamonCollection date unreportedmean.
Species not statedAngelon-Gaetz et al. 2018Cinnamon2011–2018mean.Same samples: 2,500–2,700 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Indonesia)Collection date unreportedmean.Same samples: 750–792 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Madagascar)Collection date unreportedmean.Same samples: 208–384 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Vietnam)Collection date unreportedmean.Same samples: 2,260–2,920 µg/kg (range)
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Ceylon (C. verum)Islam et al. 2023S-12 Cinnamon (non-branded)Collection date unreportedsample value.
Species not statedSabri et al. 2025Cinnamon2025mean.Same samples: 1,230–2,400 µg/kg (range)
Ceylon (C. verum)Savić et al. 2019CinnamonCollection date unreportedsample value.
Species not statedSPEX 2023CinnamonCollection date unreportedmax.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedWiniarska-Mieczan et al. 2023CinnamonCollection date unreportedmean.
Recalled cinnamon applesauce pouchesNapier et al. 2024Household A home sample2023–2024Applesauce as soldsample value.
Recalled cinnamon applesauce pouchesNapier et al. 2024Household B home sample2023–2024Applesauce as soldsample value.
Recalled cinnamon applesauce pouchesNapier et al. 2024Household C home samples (3 lots)2023–2024Applesauce as soldrange.
Recalled cinnamon applesauce pouchesNapier et al. 2024Households A–C home product2023–2024Applesauce as soldrange.
Recalled cinnamon applesauce pouchesNapier et al. 2024Post-recall statewide home and2023–2024Applesauce as soldrange.
Recalled cinnamon applesauce pouchesNapier et al. 2024Products linked to confirmed NC2023–2024Applesauce as soldmean.
32 findings · 5 studies · 3 spread figures folded in
Species not stated, groundWHO GEMS/FoodWHO region EURO2016–2023median.
Ceylon (C. verum), groundWHO GEMS/FoodWHO region PAHO2022median.
Species not stated, groundWHO GEMS/FoodWHO region PAHO2013–2023median.
Cassia, groundWHO GEMS/FoodWHO region SEARO2019median.
Species not stated, groundWHO GEMS/FoodWHO region SEARO2016–2020median.
Ceylon (C. verum), groundWHO GEMS/FoodWHO region WPRO2024median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2016–2024median.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020mean.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Cinnamon2020proportion exceeding.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020mean.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 150–7,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 750–2,400 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 160–7,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
Species not stated, groundWestern Australia CSP 41cinnamon products within WA retail2024–2025range.
5 findings · 1 study
Cassia, sticks or piecesWHO GEMS/FoodWHO region PAHO2017median.
Ceylon (C. verum), sticks or piecesWHO GEMS/FoodWHO region PAHO2022median.
Species not stated, sticks or piecesWHO GEMS/FoodWHO region PAHO2013–2022median.
Species not stated, sticks or piecesWHO GEMS/FoodWHO region SEARO2017–2024median.
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021–2024median.
1 finding · 1 study
Cassia, barkMatloob 2016Cinnamon (Bark)Collection date unreportedmean.
10 findings · 2 studies · 3 spread figures folded in
Species not stated, groundWHO GEMS/FoodWHO region WPRO2021median.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 40–4,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 330–790 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 40–4,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
1 finding · 1 study
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021median.
5 findings · 5 studies · 1 spread figure folded in
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Ceylon (C. verum)EFSA 2014Cinnamon2000–2012mean.
Ceylon (C. verum)Islam et al. 2023S-12 Cinnamon (non-branded)Collection date unreportedsample value.
Species not statedSabri et al. 2025Cinnamon2025mean.Same samples: 178–1,860 µg/kg (range)
Ceylon (C. verum)Savić et al. 2019CinnamonCollection date unreportednot detected.
1 finding · 1 study
Cassia, barkMatloob 2016Cinnamon (Bark)Collection date unreportedmean.
24 findings · 11 studies · 4 spread figures folded in
Species not statedWHO GEMS/FoodWHO region EMRO2013–2019median.
Ceylon (C. verum)WHO GEMS/FoodWHO region EURO2003–2016median.
Species not statedWHO GEMS/FoodWHO region EURO2004–2019median.
Species not statedWHO GEMS/FoodWHO region PAHO2017median.
Species not statedAmmar et al. 2023raw ingredient cinnamonCollection date unreportedmean.
Ceylon (C. verum)Bua et al. 2016Cinnamon (Indonesia)Collection date unreportedmean.Same samples: 117–120 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Madagascar)Collection date unreportedmean.Same samples: 37–38 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Vietnam)Collection date unreportedmean.Same samples: 176–215 µg/kg (range)
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Ceylon (C. verum)Islam et al. 2023S-12 Cinnamon (non-branded)Collection date unreportedsample value.
Species not statedSabri et al. 2025Cinnamon2025mean.Same samples: 157–394 µg/kg (range)
Ceylon (C. verum)Savić et al. 2019CinnamonCollection date unreportedsample value.
Species not statedSPEX 2023CinnamonCollection date unreportedmax.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedU.S. 2021Manufacturer B lot tested2016–2019sample value.
Species not statedWestern Australia CSP 41cinnamon products within WA retail2024–2025range.
Species not statedWiniarska-Mieczan et al. 2023CinnamonCollection date unreportedmean.
28 findings · 4 studies · 3 spread figures folded in
Species not stated, groundWHO GEMS/FoodWHO region EURO2004median.
Species not stated, groundWHO GEMS/FoodWHO region PAHO2017median.
Ceylon (C. verum), groundWHO GEMS/FoodWHO region WPRO2024median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2021–2024median.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020mean.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Cinnamon2020proportion exceeding.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020mean.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 46–3,700 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 150–3,700 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 290–490 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
3 findings · 1 study
Cassia, sticks or piecesWHO GEMS/FoodWHO region PAHO2017median.
Species not stated, sticks or piecesWHO GEMS/FoodWHO region PAHO2017median.
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021–2024median.
1 finding · 1 study
Cassia, barkMatloob 2016Cinnamon (Bark)Collection date unreportedmean.
9 findings · 5 studies · 4 spread figures folded in
Ceylon (C. verum)WHO GEMS/FoodWHO region EURO2009–2013median.
Species not statedWHO GEMS/FoodWHO region EURO2016–2023median.
Species not statedWHO GEMS/FoodWHO region European Union2000–2013median.
Species not statedAmmar et al. 2023raw ingredient cinnamonCollection date unreportedmean.
Ceylon (C. verum)Bua et al. 2016Cinnamon (Indonesia)Collection date unreportedmean.Same samples: 21–27 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Madagascar)Collection date unreportedmean.Same samples: 7–9 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Vietnam)Collection date unreportedmean.Same samples: 82–99 µg/kg (range)
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Species not statedSabri et al. 2025Cinnamon2025mean.Same samples: 24–176 µg/kg (range)
27 findings · 4 studies · 3 spread figures folded in
Species not stated, groundWHO GEMS/FoodWHO region EURO2018–2023median.
Ceylon (C. verum), groundWHO GEMS/FoodWHO region WPRO2024median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2021–2024median.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020mean.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Cinnamon2020proportion exceeding.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020mean.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 12–450 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 34–71 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 12–450 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
Species not stated, groundU.S. 2021Manufacturer A lot tested2016–2019sample value.
1 finding · 1 study
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021–2024median.
1 finding · 1 study
Species not statedWHO GEMS/FoodWHO region EURO2016median.
2 findings · 1 study
Species not stated, groundWHO GEMS/FoodWHO region EURO2018median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2024median.
7 findings · 5 studies · 2 spread figures folded in
Ceylon (C. verum)WHO GEMS/FoodWHO region EURO2004–2016median.
Ceylon (C. verum)Bua et al. 2016Cinnamon (Indonesia)Collection date unreportedmean.Same samples: 2–3 µg/kg (range)
Ceylon (C. verum)Bua et al. 2016Cinnamon (Madagascar)Collection date unreportedbelow LOD.
Ceylon (C. verum)Bua et al. 2016Cinnamon (Vietnam)Collection date unreportedmean.Same samples: 43–46 µg/kg (range)
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Species not statedSPEX 2023CinnamonCollection date unreportedmax.
Species not statedWestern Australia CSP 41cinnamon products within WA retail2024–2025range.
22 findings · 3 studies · 2 spread figures folded in
Ceylon (C. verum), groundWHO GEMS/FoodWHO region WPRO2024median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2021–2024median.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020mean.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Bulk (unpackaged)2020sample value.
Species not stated, groundMoussa et al. 2024Cinnamon2020proportion exceeding.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020mean.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Imported (packed in France)2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands with FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020mean.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Species not stated, groundMoussa et al. 2024Local brands without FSMS2020sample value.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedbelow LOD.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedrange.
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.Same samples: up to 8 µg/kg (range maximum)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedbelow LOD.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.Same samples: up to 59 µg/kg (range maximum)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedbelow LOD.
1 finding · 1 study
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021–2024median.
1 finding · 1 study
Cassia, barkMatloob 2016Cinnamon (Bark)Collection date unreportedmean.
3 findings · 3 studies · 1 spread figure folded in
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Species not statedSabri et al. 2025Cinnamon2025mean.Same samples: 171–2,440 µg/kg (range)
Ceylon (C. verum)Savić et al. 2019CinnamonCollection date unreportedsample value.
1 finding · 1 study
Cassia, barkMatloob 2016Cinnamon (Bark)Collection date unreportedmean.
9 findings · 1 study · 3 spread figures folded in
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 280–2,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 480–600 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 450–2,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
11 findings · 2 studies · 3 spread figures folded in
Ceylon (C. verum), groundWHO GEMS/FoodWHO region WPRO2024median.
Species not stated, groundWHO GEMS/FoodWHO region WPRO2024median.
Ceylon (C. verum), groundTinggi et al. 2025ChinaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Cinnamon (n = 10)Collection date unreportedmean.Same samples: 11,000–920,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025IndiaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedmean.Same samples: 160,000–540,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025Sri LankaCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedmean.Same samples: 25,000–920,000 µg/kg (range)
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
Ceylon (C. verum), groundTinggi et al. 2025VietnamCollection date unreportedsample value.
1 finding · 1 study
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2024median.
3 findings · 3 studies
Species not statedAmmar et al. 2023raw ingredient cinnamonCollection date unreportedmean.
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Ceylon (C. verum)Savić et al. 2019CinnamonCollection date unreportedsample value.
1 finding · 1 study
Species not stated, groundWHO GEMS/FoodWHO region WPRO2021median.
1 finding · 1 study
Species not stated, sticks or piecesWHO GEMS/FoodWHO region WPRO2021median.
1 finding · 1 study
Ceylon (C. verum)Cicero et al. 2022Cinnamon (H), IndonesiaCollection date unreportedsample value.
Shared dataset methods and interpretation

Source summaries retain their original statistic, material, basis and censoring. Each source drawer identifies methods and overlapping samples. No matched reference or pooled distribution is inferred.

HMI cinnamon Pb reference · 7 sampling families

Reference and scope

HMI cinnamon Pb reference · 7 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference212310800
Alternative weighting193–200 (bounded)310800

94 reference units; 7 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food7514%
Bua et al. 2016214%
Cicero et al. 2022114%
Moussa et al. 2024814%
Savić et al. 2019114%
Tinggi et al. 2025614%
Ammar et al. 2023114%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Pb:a45b95d60100

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon Cr reference · 5 sampling families

Reference and scope

HMI cinnamon Cr reference · 5 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference1307752360
Alternative weighting1307752360

11 reference units; 5 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food220%
Cicero et al. 2022120%
Islam et al. 2023120%
Savić et al. 2019120%
Tinggi et al. 2025620%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Cr:648fb706a89e

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon Cd reference · 8 sampling families

Reference and scope

HMI cinnamon Cd reference · 8 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference54.3–62.6 (bounded)90194
Alternative weighting54.3–62.6 (bounded)90200

36 reference units; 8 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1613%
Bua et al. 2016213%
Cicero et al. 2022113%
Islam et al. 2023113%
Moussa et al. 2024813%
Savić et al. 2019113%
Tinggi et al. 2025612%
Ammar et al. 2023113%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Cd:096cd25a509a

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon tAs reference · 6 sampling families

Reference and scope

HMI cinnamon tAs reference · 6 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference5–9 (bounded)71–91 (bounded)190–191 (bounded)
Alternative weighting5–9 (bounded)74–91 (bounded)186–191 (bounded)

34 reference units; 6 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food1617%
Bua et al. 2016217%
Cicero et al. 2022117%
Moussa et al. 2024817%
Tinggi et al. 2025617%
Ammar et al. 2023117%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-tAs:53a5c21f1310

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon iAs reference · 1 sampling families

Reference and scope

HMI cinnamon iAs reference · 1 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference≤2021.527
Alternative weighting≤2021.527

3 reference units; 1 sampling family. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food3100%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-iAs:5d9077ddd5b6

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon tHg reference · 5 sampling families

Reference and scope

HMI cinnamon tHg reference · 5 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference22–10 (bounded)19
Alternative weighting22–10 (bounded)19

24 reference units; 5 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food720%
Bua et al. 2016220%
Cicero et al. 2022120%
Moussa et al. 2024820%
Tinggi et al. 2025620%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-tHg:aaa79ac906bd

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon Ni reference · 3 sampling families

Reference and scope

HMI cinnamon Ni reference · 3 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference1105402770
Alternative weighting1105402770

8 reference units; 3 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Cicero et al. 2022133%
Savić et al. 2019133%
Tinggi et al. 2025633%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Ni:2435d96f67b2

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon Al reference · 4 sampling families

Reference and scope

HMI cinnamon Al reference · 4 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference55302720055500
Alternative weighting55302720055500

9 reference units; 4 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
Cicero et al. 2022125%
Savić et al. 2019125%
Tinggi et al. 2025625%
Ammar et al. 2023125%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Al:b65ecb156249

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

HMI cinnamon Sn reference · 2 sampling families

Reference and scope

HMI cinnamon Sn reference · 2 sampling families. Dried cinnamon bark as sold or analysed, µg/kg; dry-weight and as-is labels pooled. Distribution of subgroup median concentration values.

Reference (µg/kg)Q1MedianQ3
Primary HMI reference60–110 (bounded)5871050
Alternative weighting60–110 (bounded)5871050

3 reference units; 2 sampling families. Counts describe evidence units, not independent studies or certainty.

Contributing familyReference unitsWeight
WHO GEMS/Food250%
Cicero et al. 2022150%

Methods

HMI pools subgroup medians from every compatible cinnamon sampling family in the evidence ledger: WHO GEMS/Food medians by reporting region, year, labelled species and form (random sampling only), per-product results printed by individual surveys, and published subgroup medians. Each family has equal total weight; subgroups have equal weight within a family. Non-detects stay as zero-to-limit intervals, so quartiles carry lower and upper bounds. Means, ranges and maxima never enter as observations, and outbreak or adulteration samples never enter.

Inverse weighted empirical CDF; midpoint at exact cumulative-weight boundaries. At least four reference units and a definitely positive Q1–Q3 spread are required. This is a display eligibility rule, not statistical validation.

Limitations

An international evidence-library reference for dried cinnamon of all species, not a probability sample of the world market and not a Cassia-only or Ceylon-only reference. GEMS/Food regions are reporting regions, not growing origins. Dry-weight and as-is results are pooled because both describe a dried spice whose residual moisture is not reported. A position is descriptive concentration, not a safety or compliance judgment.

Admitted source families

Reference version and interpretation

Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.

hmi-pooled-reference-v2:cinnamon-pooled-Sn:adb651551212

The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.

1 dataset

How metals reach cinnamon

Cinnamon carries metals from two very different routes. The ordinary route is the bark and what settles on it: nearly every product carries measurable lead, cadmium, nickel, chromium and aluminium, consistent with uptake from soil and with dust.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source → In Iraq, unwashed spices held on average 7% more lead and 14% more cadmium than the same spices washed, a sign that part of the burden sits on the surface.5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →

The second route is adulteration. The United States Food and Drug Administration traced the 2023 applesauce lead to cinnamon ground in Ecuador and reported that the lead and chromium came from lead chromate, a yellow pigment.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source → Lead chromate raises lead and chromium together, so the two are screened as a pair; a Western Australian survey of 380 products found no evidence of high lead chromate in the samples it screened.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →

Equipment and grinding are plausible third routes. Australian authors suggest that aluminium utensils and stainless-steel equipment may add aluminium, chromium and nickel; the Vietnamese product with 7,000 µg/kg lead also carried 920,000 µg/kg aluminium, 4,000 µg/kg chromium and 2,000 µg/kg nickel.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → No study in the ledger measured cinnamon before and after grinding.

Which cinnamon types and origins measured lower

For lead, cinnamon labelled as Ceylon (C. verum) measured lower than cinnamon labelled as cassia in the largest dataset.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → In WHO GEMS/Food, 58 lead results labelled C. verum had a median of 225 µg/kg, with 2 (3%) above 2,000 µg/kg, against a median of 392 µg/kg and 60 of 268 (22%) above 2,000 µg/kg for results labelled cassia.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → Most cassia results came from one Western Pacific reporting region, so species and source cannot be separated, and the labels were not verified.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

Within single studies, the C. verum label did not guarantee low lead.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source → Queensland products labelled C. verum ranged from 150 µg/kg (China) and 160 µg/kg (Vietnam) to 2,400 µg/kg (Sri Lanka), 2,500 µg/kg (India) and 7,000 µg/kg (Vietnam).4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Three C. verum samples on the Italian market measured 294 µg/kg (Madagascar) and 766 µg/kg (Indonesia), while the Vietnamese sample was higher but its printed mean conflicts with its own replicate range.13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source → These are lowest observed values from one to two samples per country, not a ranking of countries.

Form mattered more consistently for lead. Sticks and pieces in GEMS/Food had a median of 90 µg/kg and none of 46 results above 2,000 µg/kg, against a median of 560 µg/kg and 20 of 234 above it for ground cinnamon.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → Western Australia found that most lead results above 2,000 µg/kg were ground cinnamon.6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source → This is a tentative pattern: the sticks came from fewer regions and years.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

Cadmium follows species and origin less clearly. GEMS/Food cadmium had a median of about 220 µg/kg with no result above 1,000 µg/kg, and C. verum-labelled results were somewhat lower (median 150 against 230 µg/kg).1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → One Sri Lankan product in Queensland reached 3,700 µg/kg while the other held 150 µg/kg, and five Iraqi cassia samples averaged 874 µg/kg.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →

Choosing sticks for lead can raise chromium. In the one GEMS/Food submission that measured chromium, five stick samples had a median of 760 µg/kg against 215 µg/kg for ten ground samples.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → Arsenic and mercury are low enough in most cinnamon that their comparisons rarely change a decision: GEMS/Food total mercury never exceeded 50 µg/kg and inorganic arsenic was 27 µg/kg at most.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

Is Ceylon cinnamon lower in lead than cassia?

In the monitoring data, yes on average: GEMS/Food results labelled C. verum had a median of 225 µg/kg lead against 392 µg/kg for cassia-labelled results, and far fewer exceeded 2,000 µg/kg (3% against 22%).1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → But the labels were not verified, most cassia results came from one reporting region, and Australian products labelled C. verum ranged up to 7,000 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →

Are cinnamon sticks lower in metals than ground cinnamon?

For lead, yes in the monitoring data: sticks had a median of 90 µg/kg and none of 46 results above 2,000 µg/kg, against 560 µg/kg for ground cinnamon.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → For chromium, the one submission measuring both forms found sticks higher (median 760 against 215 µg/kg).1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

Washing, processing and finished foods

Processing evidence for cinnamon is thin. Across 23 Iraqi spices, unwashed portions held on average 7% more lead, 14% more cadmium and 11% more mercury than portions washed with tap and deionised water; cinnamon was not reported separately and the unwashed values were not printed.5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source → No study measured roasting, sterilisation or extraction.

Finished foods carry the cinnamon’s metals into much larger servings. A baby-food manufacturer accepted nine cinnamon lots with 20–887 µg/kg lead and 117–345 µg/kg cadmium under an internal specification of 1,000 µg/kg, and another recalculated one lot to the finished food as consumed.14U.S. House of Representatives, Committee on Oversight and Reform, Subcommittee on Economic and Consumer Policy · 2021Baby Foods Are Tainted with Dangerous Levels of Arsenic, Lead, Cadmium, and MercuryStaff ReportRead source → In the outbreak, the adulterated cinnamon raised lead in the whole puree to 1,900–3,000 µg/kg in pouches from affected homes.12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source →

Mitigation from sourcing to recall

Controls for cinnamon act at sourcing, at lot acceptance and at recall. The measured comparisons are observational: lower lead in sticks than in ground cinnamon and in C. verum-labelled than in cassia-labelled results, and higher lead exceedance in bulk than in packaged spices in Lebanon.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source → Testing for lead and chromium together detects lead chromate before release, and recall audits found recalled pouches still on 5 of 217 store shelves weeks later.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source →

About this table
ControlMaterialEffectsEvidence
Controls by production stage, retaining all paired analyte outcomes. Seasons and reused guidance do not add independent studies. No effectiveness ranking is implied.
ControlMaterialEffectsEvidence
Prefer whole sticks or pieces where lead is the concernsourcing and procurement · As reportedCinnamon
Pb · Decreased
Cr · Increased
1

WHO GEMS/Food

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadDecreasedLower lead in whole cinnamon (observational)Median lead by formGround versus wholeDried cinnamon as sold or analysedHigh · HMI calculates the relative change from the retained source means: (90 − 560) / 560 × 100 = -83.9%. This is a descriptive contrast of means; no confidence interval or significance test is inferred.

Total chromiumIncreasedHigher chromium in sticks (one submission)Median chromium by formGround versus wholeDried cinnamon as sold or analysedHigh · HMI calculates the relative change from the retained source means: (760 − 215) / 215 × 100 = 253.5%. This is a descriptive contrast of means; no confidence interval or significance test is inferred.

Whole versus ground cinnamon in the same database (HMI-calculated medians; non-detects bounded).

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

Results for sticks and pieces had a lead median of 90 µg/kg and none of 46 above 2,000 µg/kg, against a median of 560 µg/kg and 20 of 234 above it for ground cinnamon.

ContextSelected control
MaterialCinnamon bark results submitted to WHO GEMS/Food, 2013–2024
Stagesourcing and procurement
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsForms come from different regions and years; form labels from submitters.
Tested scaleMonitoring database
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Observational comparison. Forms come from different regions and years; form labels from submitters.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedLower lead in whole cinnamon (observational)560 → 90 µg/kgAbsolute values unextractedDried cinnamon as sold or analysedprimary/gemsfood-cinnamon-records.csv, lead by form
Total chromium (Cr)As reportedHigher chromium in sticks (one submission)215 → 760 µg/kgAbsolute values unextractedDried cinnamon as sold or analysedprimary/gemsfood-cinnamon-records.csv, chromium WPRO 2021

Observational; fewer stick results; chromium trade-off from one submission.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Forms come from different regions and years; form labels from submitters.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Specify verified Ceylon (C. verum) cinnamon where lead is the concernsourcing and procurement · As reportedCinnamon
Pb · Decreased
1

WHO GEMS/Food

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadDecreasedLower lead in C. verum-labelled cinnamon (observational)Median lead by species labelCassia versus C. verum labelDried cinnamon as sold or analysedModerate · HMI calculates the relative change from the retained source means: (225 − 392) / 392 × 100 = -42.6%. This is a descriptive contrast of means; no confidence interval or significance test is inferred.

C. verum-labelled versus cassia-labelled results in the same database.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

Results labelled C. verum had a lead median of 225 µg/kg with 3% above 2,000 µg/kg, against 392 µg/kg and 22% for cassia-labelled results; cadmium medians 150 against 230 µg/kg for unstated species.

ContextSelected control
MaterialCinnamon bark results labelled by species, WHO GEMS/Food
Stagesourcing and procurement
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsSpecies labels unverified; cassia results concentrated in one reporting region.
Tested scaleMonitoring database
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Observational comparison. Species labels unverified; cassia results concentrated in one reporting region.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedLower lead in C. verum-labelled cinnamon (observational)392 → 225 µg/kgAbsolute values unextractedDried cinnamon as sold or analysedprimary/gemsfood-cinnamon-records.csv, lead by species

Confounded by region; a label is not an authenticated species.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Species labels unverified; cassia results concentrated in one reporting region.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Test each lot for lead and chromium together to screen for lead chromatelot acceptance and release · As reportedCinnamon
Pb · Context
Cr · Context
1

Western Australia CSP 41

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadDetection, not removalCo-elevated lead and chromiumPaired screenDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Total chromiumDetection, not removalCo-elevated lead and chromiumPaired screenDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Paired lead and chromium results per product against nominal thresholds.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

The survey screened for lead chromate by co-elevated lead and chromium and found no evidence of it; most lead results above 2,000 µg/kg were ground cinnamon.

ContextSelected control
Material380 retail herb and spice products, Western Australia, 2024–2025
Stagelot acceptance and release
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsAny cinnamon lot-release testing.
Tested scaleRetail surveillance
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Observational comparison. Any cinnamon lot-release testing.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedDetection, not removalNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedTable 6, Lead Chromate row, p.23
Total chromium (Cr)As reportedDetection, not removalNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedTable 6, Lead Chromate row, p.23

Screen only; confirmation of lead chromate needs further analysis.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Any cinnamon lot-release testing.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Confirm suspected adulteration and trace it to the ingredientlot acceptance and release · As reportedCinnamon
Pb · Context
Cr · Context
1

Troeschel et al. 2025

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadSource identified; no concentrations printedLead in ingredient cinnamonImplicated versus expectedDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Total chromiumSource identified; no concentrations printedChromium in ingredient cinnamonImplicated versus expectedDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Finished product and ingredient testing during an outbreak investigation.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

FDA testing found high lead and chromium in recalled product and in the manufacturer’s cinnamon (5 January 2024) and later attributed both to lead chromate in cinnamon ground in Ecuador (29 February 2024).

ContextSelected control
MaterialRecalled apple cinnamon pouches and cinnamon from the manufacturer, 2023–2024
Stagelot acceptance and release
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsOutbreak response; applies when finished-food results are high.
Tested scaleRegulatory investigation
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Measured comparison. Outbreak response; applies when finished-food results are high.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedSource identified; no concentrations printedNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedPublic Health Response
Total chromium (Cr)As reportedSource identified; no concentrations printedNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedPublic Health Response

After-the-fact detection; prevention requires routine lot testing.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Outbreak response; applies when finished-food results are high.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Wash bark before grinding to remove surface depositsfood processing · As reportedCinnamon
Pb · Decreased
Cd · Decreased
1

Matloob 2016

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadDecreasedUnwashed 7% higher (all spices pooled)Spice leadUnwashed versus washedDried cinnamon as sold or analysedNot quantified · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

CadmiumDecreasedUnwashed 14% higher (all spices pooled)Spice cadmiumUnwashed versus washedDried cinnamon as sold or analysedNot quantified · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Unwashed versus washed portions of the same spices.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

Unwashed portions held on average 7% more lead, 14% more cadmium and 11% more mercury than portions washed with tap then deionised water.

ContextSelected control
Material23 spices bought in Babil, Iraq (cinnamon included; not reported separately)
Stagefood processing
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsSurface deposits only; adulterants mixed into ground product are not removed.
Tested scaleLaboratory preparation
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Measured comparison. Surface deposits only; adulterants mixed into ground product are not removed.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedUnwashed 7% higher (all spices pooled)Numerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedResults p.2061
Cadmium (Cd)As reportedUnwashed 14% higher (all spices pooled)Numerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedResults p.2061

Not cinnamon-specific; unwashed values not printed.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Surface deposits only; adulterants mixed into ground product are not removed.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Prefer packaged over bulk spicespackaging and storage · As reportedCinnamon
Pb · Decreased
1

Moussa et al. 2024

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadDecreasedLower lead exceedance in packaged spices (all spices pooled)Share of composites above 0.3 mg/kg leadBulk versus packagedDried cinnamon as sold or analysedNot quantified · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Bulk versus packaged composites of the same spices and collections.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

31% of bulk composites exceeded 0.3 mg/kg lead against 12% of locally packaged composites with or without a food safety management system.

ContextSelected control
Material13 spices in Lebanon, bulk versus locally packaged and imported composites, 2020
Stagepackaging and storage
AudienceIngredient suppliers · Brands · Consumers
PeriodAs reported
ConditionsRetail purchase of spices.
Tested scaleMarket survey
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Observational comparison. Retail purchase of spices.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedLower lead exceedance in packaged spices (all spices pooled)Numerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedTable 1; section 3.4

Not cinnamon-specific; composites; exceedance shares only.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Retail purchase of spices.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Require supplier certificates of analysis for metalssourcing and procurement · As reportedCinnamon
Pb · Context
Guidance

Moussa et al. 2024

HMI source record · Original source

Official guidance; not an independent experimental dataset. Reused across actions without adding studies.

Effects and comparators

LeadNo difference by management systemShare of composites above 0.3 mg/kg leadWith versus without systemDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Packers with versus without a food safety management system.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

Packers with and without a food safety management system had the same lead exceedance rate (12%), so the authors recommend approved suppliers with certificates of analysis for metals.

ContextSelected control
MaterialSpice packers in Lebanon
Stagesourcing and procurement
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsSupplier approval for spices.
Tested scaleAuthor guidance
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Author, agency or review guidance. Supplier approval for spices.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedNo difference by management systemNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedTable 1; Discussion

Guidance; supplier testing not evaluated.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Supplier approval for spices.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Set ingredient specifications that reject high-lead cinnamonlot acceptance and release · As reportedCinnamon
Pb · Context
Cd · Context
1

US House Subcommittee 2021

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadLots of 20–887 µg/kg accepted under a 1,000 µg/kg specificationLot leadResult versus specificationDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

CadmiumLots of 117–345 µg/kg accepted under a 1,000 µg/kg specificationLot cadmiumResult versus specificationDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Lot results against each manufacturer’s internal specification.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

One manufacturer accepted all nine cinnamon lots (lead 20–887, cadmium 117–345 µg/kg) under a 1,000 µg/kg specification; the other used 100 µg/kg but approved deviations.

ContextSelected control
MaterialCinnamon lots tested by two US baby-food manufacturers, 2016–2019
Stagelot acceptance and release
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsIngredient release for infant foods.
Tested scaleManufacturer records
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Observational comparison. Ingredient release for infant foods.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedLots of 20–887 µg/kg accepted under a 1,000 µg/kg specificationNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedpp.24–26
Cadmium (Cd)As reportedLots of 117–345 µg/kg accepted under a 1,000 µg/kg specificationNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedp.30

Selected excerpts of manufacturer records; not representative.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Ingredient release for infant foods.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Avoid aluminium and worn stainless-steel contact surfaces in processingfood processing · As reportedCinnamon
Al · Context
Guidance

Tinggi et al. 2025

HMI source record · Original source

Official guidance; not an independent experimental dataset. Reused across actions without adding studies.

Effects and comparators

AluminiumGuidance; effect not measuredEquipment contactAluminium or steel versus other surfacesDried cinnamon as sold or analysedContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Guidance; no measured comparison.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

The authors suggest aluminium utensils and stainless-steel equipment may add aluminium, chromium and nickel; the product with the most lead also carried the most aluminium, chromium and nickel.

ContextSelected control
MaterialPowdered cinnamon sold in Queensland
Stagefood processing
AudienceIngredient suppliers · Brands
PeriodAs reported
ConditionsGrinding and handling equipment.
Tested scaleAuthor guidance
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Author, agency or review guidance. Grinding and handling equipment.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Aluminium (Al)As reportedGuidance; effect not measuredNumerical baseline not extractedAbsolute values unextractedDried cinnamon as sold or analysedDiscussion pp.6–7

Suggested mechanism, not tested.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Grinding and handling equipment.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Recall contaminated products and audit removal from shelvesdietary exposure · As reportedCinnamon
Pb · Context
1

Napier et al. 2024

HMI source record · Original source

One dataset family. Linked analytes, repeated seasons and reports are not independent studies.

Effects and comparators

LeadRecalled product (1,900–5,800 µg/kg) still on 5 of 217 store shelvesLead in recalled pouchesPost-recall samplingFinished applesauce as soldContext · No supported numerical treatment contrast is retained for this finding. A direction, market association, source-selection strategy or guidance statement alone does not establish a percentage change.

Store visits after the recall.

How magnitude is classified

HMI editorial magnitude bands: Low is a change greater than 0% and below 25%; Moderate is 25% to below 50%; High is 50% or more, relative to that control’s own comparator. Direction is shown separately. These are descriptive display bands, not validated efficacy cutoffs, occurrence-baseline positions, statistical significance, evidence certainty, safety or net benefit. A range spanning bands retains both labels; a qualitative label has no implied percentage.

Control in context

After the October 2023 recall, county staff still found and removed recalled pouches in 5 of 217 stores, and products collected after the recall held 1,900–5,800 µg/kg lead.

ContextSelected control
MaterialApple cinnamon puree pouches, North Carolina, 2023
Stagedietary exposure
AudienceIngredient suppliers · Brands · Consumers
PeriodAs reported
ConditionsPost-market response to an adulterated ingredient.
Tested scalePublic health response
Sample unitsSource sampling units; no independent intervention units unless stated.
Trade-offsOther metals, cost and supply not quantified unless stated.
VerificationConfirm with lot-specific lead and chromium results using an adequate quantification limit.

Design, applicability and operating conditions

Measured comparison. Post-market response to an adulterated ingredient.

One study family.

As reported by the source

Reduces metal reaching the cinnamon lot, or detects it before release.

Source measurements and linked outcomes

AnalytePeriodEffectConverted valuesOriginal means (SD)BasisLocator
Lead (Pb)As reportedRecalled product (1,900–5,800 µg/kg) still on 5 of 217 store shelvesNumerical baseline not extractedAbsolute values unextractedFinished applesauce as soldNorth Carolina Recall Audit

Audit in one state.

No percentage calculated unless shown in outcomes.

Not applicable.

Trade-offs and implementation

Not assessed.

Not assessed.

Not assessed.

Not quantified.

Not assessed.

Applicability and verification

Post-market response to an adulterated ingredient.

Lot testing.

See source.

Extraction limits and next actions

Unresolved fieldNext action
controlled intervention effectNo controlled cinnamon intervention study in the library; keep effect unquantified unless measured.

Provenance and assessment

As disclosed by the source.

Source facts and HMI calculations are distinguished above. These selected source findings do not constitute a systematic review; outcome-level appraisal remains incomplete.

Intervention evidence

Trade-offs and limits of controls

Every sourcing lever has a cost. Sticks were lower in lead but higher in chromium in the one submission that measured both, and the C. verum label did not prevent 2,400–7,000 µg/kg lead in Australian products.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → A specification set high enough to pass every lot, such as 1,000 µg/kg for lead in infant-food cinnamon, accepts lots that a lower limit would reject.14U.S. House of Representatives, Committee on Oversight and Reform, Subcommittee on Economic and Consumer Policy · 2021Baby Foods Are Tainted with Dangerous Levels of Arsenic, Lead, Cadmium, and MercuryStaff ReportRead source →

Screening for the adulterant has limits too. A lead result alone does not show whether lead chromate is present; Western Australia used co-elevated lead and chromium as its screen, while FDA confirmed lead chromate only with an additional analysis.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →

Testing cinnamon for metals

A useful cinnamon test measures lead, chromium and cadmium, with quantification limits well below 2,000 µg/kg for lead.2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source →7Codex Alimentarius Commission · 1995General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995)Codex Alimentarius (Joint FAO/WHO Food Standards Programme)Read source → Most GEMS/Food lead results carried detection limits of 3–30 µg/kg, but 75 used 100 µg/kg, and arsenic and tin results often used limits of 100–500 µg/kg, too high to describe typical cinnamon.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → Several surveys printed values only in figures or named no statistic, and Western Australian and Lebanese reports gave counts of samples above thresholds that conflict with their own figures or tables.6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source →18Winiarska-Mieczan A, Jachimowicz K, Kwiecień M, Krusiński R, Kislova S, Sowińska L, Zasadna Z, Yanovych D · 2023The Content of Cd and Pb in Herbs and Single-Component Spices Used in Polish CuisineBiological Trace Element ResearchRead source →19SPEX CertiPrep / ZeptoMetrix · 2023Heavy Metal Contamination of Hot Sauce and Chili PowderSPEX Application Note (ZeptoMetrix)Read source →

Record species, form, labelled origin and purchase market with every result, and report non-detects with their limit.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Chromium results are total chromium; lead chromate contains hexavalent chromium, but no source in the ledger measured hexavalent chromium in cinnamon.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →20EFSA Panel on Contaminants in the Food Chain (CONTAM) · 2014Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking waterEFSA Journal 2014;12(3):3595Read source →

Why do some studies report very high lead in cinnamon?

Some high values are real: GEMS/Food holds lead results up to 23,800 µg/kg and Iraqi cassia averaged 4,159 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source → Others do not survive a check against their own papers, such as a Bangladeshi sample whose lead is 10,050 µg/kg in the text and about 15,470 µg/kg in the paper’s own figure and tables.17Islam MS, Chowdhury AI, Shill LC, Reza S, Alam MR · 2023Heavy Metals Induced Health Risk Assessment Through Consumption of Selected Commercially Available Spices in Noakhali District of BangladeshmedRxiv (preprint)Read source →

Buying and verifying cinnamon

Ask for lot-specific lead and chromium results with the laboratory’s quantification limit, compared with the limit in the destination market.2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source →7Codex Alimentarius Commission · 1995General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995)Codex Alimentarius (Joint FAO/WHO Food Standards Programme)Read source →8National Health Commission, State Administration for Market Regulation · 2025GB 2762-2025: National Food Safety Standard — Maximum Levels of Contaminants in FoodsNational Food Safety Standard of the People’s Republic of ChinaRead source → Limits differ: the EU allows 2,000 µg/kg lead in bark spices, Codex 2,500 µg/kg, China 3,000 µg/kg for cassia bark, and Vietnam 2,000 µg/kg lead and 1,000 µg/kg cadmium in spices.2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source →7Codex Alimentarius Commission · 1995General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995)Codex Alimentarius (Joint FAO/WHO Food Standards Programme)Read source →8National Health Commission, State Administration for Market Regulation · 2025GB 2762-2025: National Food Safety Standard — Maximum Levels of Contaminants in FoodsNational Food Safety Standard of the People’s Republic of ChinaRead source →21Vietnam Ministry of Health · 2011QCVN 8-2:2011/BYT National technical regulation on the safety limits of heavy metal contamination in food (English)Circular No. 02/2011/TT-BYT, QCVN 8-2:2011/BYTRead source →

Record the species, the form and the growing origin separately from where the cinnamon was packed or bought.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Whole sticks and C. verum-labelled lots were lower in lead in the monitoring data, but a label is not a verified species and one survey’s C. verum products reached 7,000 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Lebanese packers with and without a food safety management system showed the same lead exceedance rate, so a management system alone is not evidence of metal control.15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source →

Exposure from cinnamon

Cinnamon is eaten in small amounts, but children eat more per kilogram of body weight.22Bureau of Toxic Substance Assessment, Center for Environmental Health, New York State Department of Health · 2019Technical Support Document for Derivation of Health-Based Guidance Values for Metals in SpicesNew York State Department of HealthRead source →23Masri S, Nasla S, Payán DD, Wu J · 2025Assessing Dietary Consumption of Toxicant-Laden Foods and Beverages by Age and Ethnicity in California: Implications for Proposition 65NutrientsRead source → In a Southern California survey, people who ate cinnamon averaged 1.34 g a day, and United States dietary data used by New York State put children under seven at 4.1–9.1 mg per kilogram of body weight a day among eaters, against 1.8 mg for adults.22Bureau of Toxic Substance Assessment, Center for Environmental Health, New York State Department of Health · 2019Technical Support Document for Derivation of Health-Based Guidance Values for Metals in SpicesNew York State Department of HealthRead source →23Masri S, Nasla S, Payán DD, Wu J · 2025Assessing Dietary Consumption of Toxicant-Laden Foods and Beverages by Age and Ethnicity in California: Implications for Proposition 65NutrientsRead source → No source in the ledger estimated what share of a person’s lead intake comes from cinnamon.

The outbreak shows what adulterated cinnamon can do in a children’s food. Pouches held 1,900–3,000 µg/kg lead in affected homes, and among 531 confirmed and probable cases the median highest blood lead was 7.2 µg/dL.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source → Two cinnamon samples collected from North Carolina homes of children with elevated blood lead held 2,500–2,700 µg/kg lead.24Angelon-Gaetz KA, Klaus C, Chaudhry EA, Bean DK · 2018Lead in Spices, Herbal Remedies, and Ceremonial Powders Sampled from Home Investigations for Children with Elevated Blood Lead Levels — North Carolina, 2011–2018MMWR Morbidity and Mortality Weekly ReportRead source →

Evidence review and remaining gaps

This assessment covers every source record in the HMI library that is tagged to cinnamon or mentions it, plus every cinnamon row in the WHO GEMS/Food, FDA and other indexed datasets; each has a recorded decision based on its content. Values from four papers are held because they could not be reconciled with their own methods or tables.5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source →15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source →17Islam MS, Chowdhury AI, Shill LC, Reza S, Alam MR · 2023Heavy Metals Induced Health Risk Assessment Through Consumption of Selected Commercially Available Spices in Noakhali District of BangladeshmedRxiv (preprint)Read source → Gaps remain: one X-ray fluorescence study’s cinnamon result sits in an unretrieved supplement, and no study authenticated the cinnamon species.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →25Unknown authors · 2025instrumentation for monitoring toxic elements in food matrices:Peer-reviewed articleRead source →

References identify the sources used in these answers. The Sources index preserves additional discovery links; inclusion there does not mean a source has been reviewed for this assessment. Corrections, completed searches, new direct evidence and changes in requirements should reopen the relevant answer.

Cinnamon FAQs

What heavy metals are found in cinnamon?

Lead is the metal most often found at levels that matter, with a GEMS/Food median of about 350 µg/kg and 13% of results above the EU limit of 2,000 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source → Cinnamon also carries cadmium (GEMS/Food median about 220 µg/kg), chromium, nickel and a great deal of aluminium; arsenic and mercury are usually low.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →

How do heavy metals get into cinnamon?

Mostly from soil and dust taken up or deposited on the bark, and in some lots from deliberate adulteration with lead chromate.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source → The 2023 outbreak cinnamon was contaminated this way after grinding in Ecuador.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

Is organic cinnamon free from heavy metals?

No source in the ledger compares organic and conventional cinnamon for metals. Organic-labelled lots tested by a baby-food manufacturer held 20–126 µg/kg lead and 117–225 µg/kg cadmium, so organic cinnamon is not metal-free.14U.S. House of Representatives, Committee on Oversight and Reform, Subcommittee on Economic and Consumer Policy · 2021Baby Foods Are Tainted with Dangerous Levels of Arsenic, Lead, Cadmium, and MercuryStaff ReportRead source →

Which type of cinnamon has the lowest lead?

In the monitoring data, whole sticks and cinnamon labelled C. verum (Ceylon) were lowest, with lead medians of 90 and 225 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → Neither is a guarantee: Australian products labelled C. verum reached 7,000 µg/kg, and sticks were higher in chromium.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →

Which countries produce cinnamon with the lowest levels?

The evidence cannot rank countries. Single samples from Indonesia measured 23 µg/kg lead in one study and 766 µg/kg in another, products from Vietnam and Sri Lanka ranged from 160 to 7,000 µg/kg within one survey, and most datasets record only where cinnamon was bought.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →10Cicero N, Gervasi T, Durazzo A, Lucarini M, Macrì A, Nava V, Giarratana F, Tardugno R, Vadalà R, Santini A · 2022Mineral and Microbiological Analysis of Spices and Aromatic HerbsFoodsRead source →13Bua DG, Annuario G, Albergamo A, Cicero N, Dugo G · 2016Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryFood Additives & Contaminants: Part BRead source →

Do foods made with cinnamon also contain heavy metals?

They can carry the cinnamon’s metals: in the 2023 outbreak, apple cinnamon pouches held 1,900–5,800 µg/kg lead because of adulterated cinnamon.12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source → No study in the ledger measured an ordinary cinnamon and the food made with it together.

What do the levels in cinnamon mean for health?

Cinnamon is eaten in small amounts, about 1.8 mg per kilogram of body weight a day for adult eaters in United States data, but children under seven eat two to five times more per kilogram.22Bureau of Toxic Substance Assessment, Center for Environmental Health, New York State Department of Health · 2019Technical Support Document for Derivation of Health-Based Guidance Values for Metals in SpicesNew York State Department of HealthRead source → No source in the ledger estimated cinnamon’s share of lead intake, and adulterated cinnamon caused the 2023 outbreak with 566 reported cases of elevated blood lead.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

Can washing or processing remove heavy metals from cinnamon?

Only partly, and not reliably: across 23 spices, unwashed portions held on average 7% more lead and 14% more cadmium than washed portions.5Matloob MH · 2016Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqPolish Journal of Environmental StudiesRead source → No method removes lead chromate from adulterated cinnamon; lots must be tested and rejected.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source →

Is the chromium in cinnamon the toxic hexavalent form?

Surveys measure total chromium, and no source in the ledger measured hexavalent chromium in cinnamon.4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source →20EFSA Panel on Contaminants in the Food Chain (CONTAM) · 2014Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking waterEFSA Journal 2014;12(3):3595Read source → Lead chromate contains hexavalent chromium, which is why FDA flagged chromium in the outbreak cinnamon.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

Are cinnamon sticks lower in metals than ground cinnamon?

For lead, yes in GEMS/Food: sticks had a median of 90 µg/kg against 560 µg/kg for ground cinnamon.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → For chromium the one paired submission found the opposite.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →

Is Ceylon cinnamon safer than cassia?

For lead, C. verum-labelled cinnamon measured lower on average in monitoring data, but the labels were not verified and individual C. verum products reached 7,000 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → No source in the ledger compared the two species directly under one method.

How does cinnamon contamination affect children?

Children under seven eat 4.1–9.1 mg of cinnamon per kilogram of body weight a day among eaters in United States data, more than adults.22Bureau of Toxic Substance Assessment, Center for Environmental Health, New York State Department of Health · 2019Technical Support Document for Derivation of Health-Based Guidance Values for Metals in SpicesNew York State Department of HealthRead source → The 2023 outbreak affected mostly young children who ate apple cinnamon pouches.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source →

What was the 2023 cinnamon applesauce recall?

In October 2023 apple cinnamon fruit puree pouches were recalled after North Carolina found 1,900–3,000 µg/kg lead in pouches from affected homes.12Napier MD, et al. · 2024Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024MMWR Morbidity and Mortality Weekly ReportRead source → FDA traced the lead to cinnamon ground in Ecuador and contaminated with lead chromate; the recall grew to 2,998,088 pouches.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

How can a buyer screen cinnamon for lead chromate?

Measure lead and chromium in the same lot: lead chromate raises both, and Western Australia used co-elevated lead and chromium as its screen.6LHAAC · 2025Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLocal Health Authorities Analytical Committee, Edith Cowan UniversityRead source → FDA confirmed lead chromate with an additional analysis after the high lead and chromium results.3Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, Chang A, Pennington AF, Rumph JT, Smith MR, Valenzuela Lara M, Cataldo N, Lewis K, Arnold K, Harris S, Nicholas DC, Hughes M, Wortmann T, Norman E, Napier MD, Dillard J, Daniel J · 2025Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Morbidity and Mortality Weekly Report (MMWR)Read source →

Does packaged cinnamon have less lead than bulk cinnamon?

Possibly: across 13 spices in Lebanon, 31% of bulk composites exceeded 0.3 mg/kg lead against 12% of locally packaged ones.15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source → For cinnamon itself the difference was small: bulk composites averaged 318 µg/kg lead against 269 µg/kg for packaged brands with a food safety system, and 37 bulk Moroccan samples averaged 2,050 µg/kg.9Sabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, Hassane YA, Kabine M · 2025Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoWorld’s Veterinary Journal 15(4): 863-881Read source →15Moussa L, Hassan HF, Savvaidis IN, Karam L · 2024Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsPLoS ONERead source →

Is there aluminium in cinnamon?

Yes, often a lot: Queensland products averaged 308,100 µg/kg aluminium and GEMS/Food results from the Western Pacific had a median of 139,000 µg/kg.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source →4Tinggi U, Farrell M, Porter J, Mitchell S, Jurd S · 2025Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureJournal of Environmental Exposure AssessmentRead source → Aluminium is not limited in spices by the instruments verified here.2European Commission · 2023Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006Official Journal of the European UnionRead source →21Vietnam Ministry of Health · 2011QCVN 8-2:2011/BYT National technical regulation on the safety limits of heavy metal contamination in food (English)Circular No. 02/2011/TT-BYT, QCVN 8-2:2011/BYTRead source →

Has lead in cinnamon been falling?

Not clearly: the share of GEMS/Food results above 2,000 µg/kg was 11% for 2003–2012, 19% for 2013–2017 and 8% for 2018–2024.1World Health Organization · 2026GEMS/Food Contaminants database heavy-metal exportsGEMS/Food Contamination Monitoring and Assessment ProgrammeRead source → These are national submissions from changing countries and regions, not a fixed panel of products.

References

Works cited on this page, in citation-number order. See Sources for this page’s source inventory. Each title links to a source record with bibliographic details, reported findings, and document provenance.

  1. GEMS/Food Contaminants database heavy-metal exportsWorld Health Organization · GEMS/Food Contamination Monitoring and Assessment Programme · 2026 · extranet.who.intDataset
  2. Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006European Commission · Official Journal of the European Union · 2023 · eur-lex.europa.euRegulation
  3. Investigation of Lead and Chromium Exposure After Consumption of Contaminated Cinnamon-Containing Applesauce — United States, November 2023–April 2024Troeschel AN, Buser MC, Winquist A, Ruckart P, Yeh M, Kuai D, et al. · Morbidity and Mortality Weekly Report (MMWR) · 2025 · doi.org/10.15585/mmwr.mm7414a2Government
  4. Heavy metal analysis in commercial spices and herbs by inductively coupled plasma mass spectrometry (ICP-MS) and estimated dietary exposureTinggi U, Farrell M, Porter J, Mitchell S, and Jurd S · Journal of Environmental Exposure Assessment · 2025 · doi.org/10.20517/jeea.2025.10Peer-reviewed
  5. Using Stripping Voltammetry to Determine Heavy Metals in Cooking Spices Used in IraqMatloob MH · Polish Journal of Environmental Studies · 2016 · doi.org/10.15244/pjoes/62401Peer-reviewed
  6. Coordinated Sampling Project 41: Microbial and Heavy Metal Detections in Herbs and SpicesLHAAC · Local Health Authorities Analytical Committee, Edith Cowan University · 2025Government
  7. General Standard for Contaminants and Toxins in Food and Feed (CXS 193-1995)Codex Alimentarius Commission · Codex Alimentarius (Joint FAO/WHO Food Standards Programme) · 1995 · www.fao.orgGovernment
  8. GB 2762-2025: National Food Safety Standard — Maximum Levels of Contaminants in FoodsNational Health Commission and State Administration for Market Regulation · National Food Safety Standard of the People’s Republic of China · 2025 · www.fzmq.gov.cnStandard
  9. Essential and Toxic Element Profiles in Selected Spices from Greater Casablanca, MoroccoSabri S, Sabri C, Salam MR, El Mellouli F, Lafram A, Khallouki H, et al. · World’s Veterinary Journal 15(4): 863-881 · 2025 · doi.org/10.54203/scil.2025.wvj88Peer-reviewed
  10. Mineral and Microbiological Analysis of Spices and Aromatic HerbsCicero N, Gervasi T, Durazzo A, Lucarini M, Macrì A, Nava V, et al. · Foods · 2022 · doi.org/10.3390/foods11040548Peer-reviewed
  11. Determination of the mineral content of spices by ICP-OESSavić S, Petrović S, Petronijević M, Cvetanović A, and Petronijević Ž · Advanced Technologies · 2019 · doi.org/10.5937/savteh1901027sPeer-reviewed
  12. Childhood Lead Exposure Linked to Apple Cinnamon Fruit Puree Pouches — North Carolina, June 2023–January 2024Napier MD and et al. · MMWR Morbidity and Mortality Weekly Report · 2024 · doi.org/10.15585/mmwr.mm7328a2Government
  13. Heavy metals in aromatic spices by inductively coupled plasma-mass spectrometryBua DG, Annuario G, Albergamo A, Cicero N, and Dugo G · Food Additives & Contaminants: Part B · 2016 · doi.org/10.1080/19393210.2016.1175516Peer-reviewed
  14. Baby Foods Are Tainted with Dangerous Levels of Arsenic, Lead, Cadmium, and MercuryU.S. House of Representatives, Committee on Oversight and Reform, Subcommittee on Economic and Consumer Policy · Staff Report · 2021 · oversight.house.govGray literature
  15. Impact of source, packaging and presence of food safety management system on heavy metals levels in spices and herbsMoussa L, Hassan HF, Savvaidis IN, and Karam L · PLoS ONE · 2024 · doi.org/10.1371/journal.pone.0307884Peer-reviewed
  16. Investigation of Element Migration from Aluminum Cooking Pots Using ICP-MSAmmar HR, Saleh SM, Sivasankaran S, Albadri AEAE, and Al-Mufadi FA · Applied Sciences (MDPI) · 2023 · doi.org/10.3390/app132413119Peer-reviewed
  17. Heavy Metals Induced Health Risk Assessment Through Consumption of Selected Commercially Available Spices in Noakhali District of BangladeshIslam MS, Chowdhury AI, Shill LC, Reza S, and Alam MR · medRxiv (preprint) · 2023 · doi.org/10.1101/2023.02.06.23285555Preprint
  18. The Content of Cd and Pb in Herbs and Single-Component Spices Used in Polish CuisineWiniarska-Mieczan A, Jachimowicz K, Kwiecień M, Krusiński R, Kislova S, Sowińska L, et al. · Biological Trace Element Research · 2023 · doi.org/10.1007/s12011-022-03437-7Peer-reviewed
  19. Heavy Metal Contamination of Hot Sauce and Chili PowderSPEX CertiPrep / ZeptoMetrix · SPEX Application Note (ZeptoMetrix) · 2023Industry
  20. Scientific Opinion on the risks to public health related to the presence of chromium in food and drinking waterEFSA Panel on Contaminants in the Food Chain (CONTAM) · EFSA Journal 2014;12(3):3595 · 2014 · doi.org/10.2903/j.efsa.2014.3595Government
  21. QCVN 8-2:2011/BYT National technical regulation on the safety limits of heavy metal contamination in food (English)Vietnam Ministry of Health · Circular No. 02/2011/TT-BYT, QCVN 8-2:2011/BYT · 2011Regulation
  22. Technical Support Document for Derivation of Health-Based Guidance Values for Metals in SpicesBureau of Toxic Substance Assessment, Center for Environmental Health, and New York State Department of Health · 2019Government
  23. Assessing Dietary Consumption of Toxicant-Laden Foods and Beverages by Age and Ethnicity in California: Implications for Proposition 65Masri S, Nasla S, Payán DD, and Wu J · Nutrients · 2025 · doi.org/10.3390/nu17193149Peer-reviewed
  24. Lead in Spices, Herbal Remedies, and Ceremonial Powders Sampled from Home Investigations for Children with Elevated Blood Lead Levels — North Carolina, 2011–2018Angelon-Gaetz KA, Klaus C, Chaudhry EA, and Bean DK · MMWR Morbidity and Mortality Weekly Report · 2018 · doi.org/10.15585/mmwr.mm6746a2Government
  25. instrumentation for monitoring toxic elements in food matrices:Unknown authors · Peer-reviewed article · 2025 · doi.org/10.1016/j.radphyschem.2025.112749Peer-reviewed

Sources

Browse Cinnamon Sources for sources cited on this page and additional discovery candidates. The searchable index distinguishes verified citation use from discovery relationships whose relevance has not been established.

Update history

22 October 2026: Rebuilt from every cinnamon record in the library: WHO GEMS/Food monitoring results, sixteen survey, investigation and agency sources, cassia and Ceylon kept apart, pooled cinnamon comparisons, verified limits and stage-led controls.