Teething & Snacks (Rice-Based)
This page is a structural scaffold for HMTc Category 1 row 16. FDA compliance samples provide a very small rice-named snack subset and a broad grain-based snack context signal; broader rice/rice-mix baby-food, snack, and teething-biscuit sources remain important context.
Heavy Metal Index pages are written for several audiences at once. Each entry point below names where to start if you are reading this page with a specific question in mind.
- Brand legal and regulatory affairs
- Cherry-pick attack vectors on rice-based teething products and snacks typically center on inorganic arsenic concentration through the rice processing. Source provenance and rice-base disclosure are the defensive core. Compare with Teething And Snacks Non Rice for the within-pair sibling. The cited sources at the bottom of this page are the citations list, written to be quoted into a Daubert brief without further editing.
- Retailer quality and compliance
- The Federal / Regulatory Limits vs Field Findings section compares the applicable regulatory cap to cited field evidence on a like-for-like basis, with basis conversion shown when conversion is well-defined and a methodology anchor when speciation differs. The Literature Evidence Summary gives source count and confidence rating per analyte.
- Brand QA and product development
- Use the Lab Result Comparator to position a single lab value inside the cited literature. The comparator positions a single lab value inside the cited literature for rice-based teething products and snacks.
- Regulators, journalists, and adversarial readers
- Every numeric claim on this page traces to a source page. The Evidence Governance note explains what this page is and is not (literature evidence, not HMT&C certification thresholds).
- HMT&C staff (internal)
- The threshold-selection arithmetic (percentile statistics, clean / dirty subcategory designation, CC eligibility) lives on the staff workbench snapshot at teething-and-snacks-rice-based, not on this public page.
This is the fast comparison view for standards developers, regulators, retailers, brands, and legal teams. It shows the applicable federal or regulatory limit next to the current field-evidence state. It is not an HMTc pass/fail table; technical distributions remain in the evidence sections below.
| Metal | Federal / regulatory limit | Actual field finding | Decision read | Evidence |
|---|---|---|---|---|
| arsenic-inorganic (iAs) | eu2023-contaminants-maximum-levels: EU European Commission maximum level: 300 ug/kg iAs. Scope: rice waffles, rice wafers, rice crackers, rice cakes, rice flakes, and popped breakfast rice. Basis: product as placed on market. | Promoted field evidence exists, but comparable product-row values have not been extracted yet. | Use as regulatory context only until product scope is confirmed. | eu2023-contaminants-maximum-levels; fera2014-fsa-metals-infant-foods-formula |
Evidence Governance
Public evidence label: Modeled or limited evidence.
This page is part of the Category 1 Evidence Fitness pilot. It summarizes source-backed occurrence evidence, partial distributions, and data gaps for this product row. Existing cited tables remain public page-level synthesis; value-level tracking is maintained in the staff Standards Workbench.
This page does not publish or justify HMT&C certification limits. Public Index pages show what the cited sources say, what is still uncertain, and where readers can verify the evidence trail.
Literature Evidence Summary
The table below summarizes what the peer-reviewed and government literature cited on this page reports for heavy-metal concentrations in rice-based product. Values are pulled directly from cited sources without re-aggregation; pooling, percentile selection, and threshold math sit in the staff Standards Workbench rather than this public page.
Methodology rules for speciation, basis preservation, non-detect handling, and source pooling are stated in the Methodology section above and apply to every row below.
| Analyte | Subcategory | Reported concentration range | Detection rate | Applicable regulatory cap | Sources | Confidence | Basis |
|---|---|---|---|---|---|---|---|
| iAs | rice-based (direct row-fit) | median 79 to 111 ppb (1 source); highest reported 273 ppb | 100% detected (199/199, Signes 2016, dry-weight) | eu2023-contaminants-maximum-levels: 300 ppb (product as placed on market) | 1 cited | low (1-2 sources) | dry-weight |
| Cd | rice-based (summary-only / supporting context) | median 0 to 7 ppb (2 sources); highest reported 3.5 ppb | 50% detected (1/2, Fda 2024, as-sold) | No applicable cap loaded | 2 cited | low (1-2 sources) | as-sold; mixed-or-source-reported |
| Pb | rice-based (summary-only / supporting context) | median 0 to 8 ppb (2 sources); highest reported 6.5 ppb | 50% detected (1/2, Fda 2024, as-sold) | No applicable cap loaded | 2 cited | low (1-2 sources) | as-sold; mixed-or-source-reported |
Lead Benchmark Context
HMI normalizes this row’s lead benchmarks to ppb so regulatory ceilings, exposure screens, and occurrence values can be compared on one concentration scale. The values below do not all mean the same thing: FDA and EU entries are regulatory context, Prop 65 is a serving-based exposure screen, and source tables on this page remain occurrence evidence.
| Reference point | Lead ppb view | Basis | How to use it |
|---|---|---|---|
| Current FDA | Not established | No snack-specific FDA lead action level | FDA 2025 processed-baby-food lead guidance excludes snack foods; infant rice cereal lead/iAs values do not automatically apply to snacks |
| EU 2023/915 | 20 ppb | processed cereal-based food as placed on market | EU maximum level if classified as processed cereal-based infant/young-child food. |
| Prop 65 MADL screen | 71.4 ppb | 21 CFR 101.12 infant teething/snack dry grain product RACC of 7 g | Derived from the 0.5 ug/day lead MADL using 500 ÷ grams/day; not a product-specific food limit. |
| HMTc standards use | ppb-normalized context | The FDA entry is a not-established status; EU can be 20 ppb if the product is in the processed-cereal infant-food scope; Prop 65 is 71.4 ppb at 7 g/day. | Use rice as a contamination-platform flag, but do not silently attach infant-rice-cereal regulatory values to rice snacks. |
Rice-based snacks remain a priority because rice can drive arsenic and cadmium even where the FDA lead action level is not established.
Full crosswalk: lead-benchmark-context.
Scaffold Status
- Page state: evidence-backed scaffold with first distribution context; row-specific synthesis remains incomplete.
- Source coverage: measured-values table populated from promoted sources; row-fit caveats remain in the table.
- Next ingest target: teething-food and snack datasets for rice-based products, especially iAs, Cd, and Pb.
- Ingredient targets are unresolved app-taxonomy placeholders, not source-backed typical-ingredient findings.
Distribution Context
The current source set does not yet support a rice-based snack HMTc contaminated-platform P10. Gardener 2019 includes a snacks category and provides broad all-sample lead/cadmium percentiles, while the UK survey reports average sweet-and-savoury snack concentrations with notably higher arsenic, cadmium, lead, and nickel than many other infant-food categories. gardener2019-lead-cadmium-infant-formula-baby-food fsa2016-infant-food-formula-metals-survey
| Evidence type | Analyte | Product or row fit | N | Statistic available | Values | Distribution use | Caveat |
|---|---|---|---|---|---|---|---|
| FDA explicit rice-named snack subset | Total arsenic, Cadmium, Lead | FDA Grain-Based Snacks rows with rice named | tAs 2; Cd 2; Pb 2 | lower-bound p50, p90, max | tAs p50 96.3 ppb, p90/max 171 ppb; Cd p90/max 3.5 ppb; Pb p90/max 6.5 ppb | Small source-scope context only | Machine-extracted; rice-named subset is too small for row distribution use (EF-3). fda2024-toxic-elements-baby-food-compliance-2009-2024 |
| Rice cracker iAs summary | Inorganic arsenic | Rice crackers from EU present study plus US FDA survey | EU n=97; US n=199 | source-reported medians and ranges | US median 79 ppb, range 8-273 ppb; EU median 111 ppb, range 18-211 ppb | Supports species-specific summary context only | Dry-weight table values; HMTc benchmark percentiles require an admitted sample-level pool. signes-pastor2016-inorganic-arsenic-rice-products-infants |
| FDA broad grain-based snack context | Total arsenic, Cadmium, Lead, Total mercury | FDA Grain-Based Snacks rows where rice status is not isolated | tAs 91; Cd 91; Pb 91; tHg 28 | lower-bound p50, p90, p95, max | tAs p50 61 ppb, p90 224 ppb, p95 383 ppb, max 561 ppb; Cd p90 27 ppb, max 41 ppb; Pb p90 15 ppb, max 23.7 ppb; tHg p90 2.5 ppb, max 3.3 ppb | Context only | Rice status is not isolated; do not assign this distribution directly to rice-based or non-rice snacks. fda2024-toxic-elements-baby-food-compliance-2009-2024 |
| UK snack category average | Inorganic arsenic | Sweet and savoury snacks | 200 infant-food total; category n not reported | category average/range | 58 to 62 ppb | Does not support p10/p90/p100 | Broad snack category; rice status not isolated. fsa2016-infant-food-formula-metals-survey |
| UK snack category average | Cadmium | Sweet and savoury snacks | 200 infant-food total; category n not reported | category average | 24 ppb | Does not support p10/p90/p100 | Broad snack category; rice status not isolated. fsa2016-infant-food-formula-metals-survey |
| UK snack category average | Lead | Sweet and savoury snacks | 200 infant-food total; category n not reported | category average | 10 ppb | Does not support p10/p90/p100 | Broad snack category; rice status not isolated. fsa2016-infant-food-formula-metals-survey |
| UK snack category average | Nickel | Sweet and savoury snacks | 200 infant-food total; category n not reported | category average | 292 ppb | Does not support p10/p90/p100 | Broad snack category; rice status not isolated. fsa2016-infant-food-formula-metals-survey |
| All-sample baby-food/formula distribution | Cadmium | Broad U.S. baby foods and formulas | 564 | p50, p75, p90, p95, p99, max | p50 2.76 ppb; p75 9.54 ppb; p90 20.75 ppb; p95 29.44 ppb; p99 42.50 ppb; max 103.90 ppb | Broad source-scope context only | Main paper Table 1 combines all categories; it does not publish snack-specific or rice-based snack concentration percentiles. Sample-level or supplemental data would be needed before this source can support the rice-based snack contaminated-platform aggregate. gardener2019-lead-cadmium-infant-formula-baby-food |
| All-sample baby-food/formula distribution | Lead | Broad U.S. baby foods and formulas | 564 | p50, p75, p90, p95, p99, max | p50 0 ppb; p75 5.60 ppb; p90 10.80 ppb; p95 18.50 ppb; p99 62.75 ppb; max 183.60 ppb | Broad source-scope context only | Main paper Table 1 combines all categories; it does not publish snack-specific or rice-based snack concentration percentiles. Sample-level or supplemental data would be needed before this source can support the rice-based snack contaminated-platform aggregate. gardener2019-lead-cadmium-infant-formula-baby-food |
Measured Values And Concentration Evidence
Rice-based snack evidence combines broad snack data with rice-product arsenic evidence. Current sources do not always isolate teething/snack products from rice cereals and crackers.
| Analyte | Evidence scope | Reported value | Approximate ppb equivalent | Source | Row-fit caveat |
|---|---|---|---|---|---|
| Total arsenic | FDA FY2009-FY2024 rice-named grain-based snack subset | p50 96.3 ppb; p90/max 171 ppb | p50 96.3 ppb; p90/max 171 ppb | fda2024-toxic-elements-baby-food-compliance-2009-2024 | Only two rice-named snack rows; source reports As, not iAs. |
| Total arsenic | FDA broad grain-based snack context, rice status not isolated | p50 61 ppb; p90 224 ppb; p95 383 ppb; max 561 ppb | p50 61 ppb; p90 224 ppb; p95 383 ppb; max 561 ppb | fda2024-toxic-elements-baby-food-compliance-2009-2024 | Context only; cannot distinguish rice-based from non-rice snacks. |
| Lead | FDA TDS baby food teething biscuits | 18 ug/kg hybrid mean | 18 ppb | spungen2024-fda-tds-infant-lead-cadmium | Teething biscuit signal; rice status not specified. |
| Inorganic arsenic | Rice crackers from EU present study plus US FDA survey | US median 79 ppb, range 8-273 ppb; EU median 111 ppb, range 18-211 ppb | median 79-111 ppb; max 273 ppb | signes-pastor2016-inorganic-arsenic-rice-products-infants | Source-reported dry-weight medians/ranges; HMTc benchmark percentiles require an admitted sample-level pool. The later signes-pastor2018-infants-dietary-arsenic-solid-food paper remains biomarker/exposure context, not occurrence evidence. |
| Total arsenic | UK sweet and savoury snacks | 98 ug/kg | 98 ppb | fsa2016-infant-food-formula-metals-survey | Broad snack category; likely relevant to rice snacks but not isolated. |
| Inorganic arsenic | UK sweet and savoury snacks | 58 to 62 ug/kg | 58 to 62 ppb | fsa2016-infant-food-formula-metals-survey | Broad snack category; rice status not isolated. |
| Cadmium | UK sweet and savoury snacks | 24 ug/kg | 24 ppb | fsa2016-infant-food-formula-metals-survey | Broad snack category; rice status not isolated. |
| Lead | UK sweet and savoury snacks | 10 ug/kg | 10 ppb | fsa2016-infant-food-formula-metals-survey | Broad snack category; rice status not isolated. |
| Nickel | UK sweet and savoury snacks | 292 ug/kg | 292 ppb | fsa2016-infant-food-formula-metals-survey | Broad snack category; rice status not isolated. |
Row Relationship
This row is the contamination-platform counterpart to teething-and-snacks-non-rice for the row architecture relationship covering iAs, Cd, and Pb.
Why This Category Is High-Risk
A 2025 scoping review reported that rice/rice-mix baby foods had median Pb of 0.008 mg/kg and median As of 0.048 mg/kg among detected items, with 31% of detected rice/rice-mix items exceeding the Pb maximum level used by the authors and 30% exceeding the As maximum level. collado-lopez2025-heavy-metals-baby-food-formula
A 2022 narrative review identifies rice-based weaning products as an arsenic concern and cites evidence of increased infant urinary inorganic arsenic metabolites after weaning with rice products. bair2022-heavy-metals-infant-toddler-foods
Gardener 2019 reported that cadmium values were higher in foods containing rice, quinoa, wheat, and oats and that lead values were elevated in foods containing rice, quinoa, and sweet potatoes. gardener2019-lead-cadmium-infant-formula-baby-food
What Drives Variance Across Brands
The current promoted sources support rice/rice-mix concern, but they do not resolve teething-food format, puff processing, rice ingredient form, or serving pattern. collado-lopez2025-heavy-metals-baby-food-formula bair2022-heavy-metals-infant-toddler-foods
Potential variance drivers for rice-based teething foods and snacks should be documented only after sources distinguish rice ingredient form, snack format, processing, sourcing geography, and analytical method.
How The App Would Estimate Risk From An Ingredient List
The app model placeholder for this row should treat teething-and-snacks, rice, rice-flour, and rice-puffs as unresolved ingredient targets until source-backed contamination profiles exist.
Historical Recalls/Enforcement
See the page-level crosswalk above and regulatory-crosswalk-field-findings for current regulatory context; row-specific enforcement events remain pending.
No row-specific regulatory event has been added for this scaffold.
Broad Product Context: Author-Scope Index
The sources below are catalogued as product-context candidates for this row. The “Author-scope row-fit” column states what the authors actually resolved on each axis: matrix (cow milk-based, soy-based, rice-based, non-rice, or unresolved) and format (powder, ready-to-feed liquid, concentrated liquid, dry, or unresolved). A source counts toward this row’s evidence pool only once; rows marked “Cross-reference” already appear as direct evidence elsewhere on this page and are not counted again here.
| Source | Title | Source scope | Metals | Author-scope row-fit | Canonical appearance |
|---|---|---|---|---|---|
| fsa2016-infant-food-formula-metals-survey | Survey of metals in commercial infant foods, infant formula a… | infant-formula-powder; infant-formula-rtf-liquid; baby-cereals; fruit-purees | Al; Sb; tAs; iAs; Cd; Cr; Cu; I; Fe; Pb; Mn; tHg; Ni; Se; Sn; Zn | Matrix axis: unresolved (declares powder generally; soy/non-soy not split). Format axis: partial (covers multiple formats without splitting). Source is broader than this row; authors do not narrow to this exact matrix/format pair. | Cross-reference - section: Distribution Context |
| gardener2019-lead-cadmium-infant-formula-baby-food | Lead and cadmium contamination in a large sample of United St… | infant-formula; baby-cereals; toddler-formula; fruit-juice | Pb; Cd | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source is broader than this row; authors do not narrow to this exact matrix/format pair. | Cross-reference - section: Distribution Context |
| signes-pastor2018-infants-dietary-arsenic-solid-food | Infants’ dietary arsenic exposure during transition to solid … | infant-formula-powder; rice-cereal; fruit-purees; vegetable-purees | iAs; tAs | Matrix axis: unresolved (declares powder generally; soy/non-soy not split). Format axis: exact (powder). Source is broader than this row; authors do not narrow to this exact matrix/format pair. | Cross-reference - section: Measured Values And Concentration Evidence |
| spungen2024-fda-tds-infant-lead-cadmium | Infants’ and young children’s dietary exposures to lead and c… | processed-baby-food; infant-formula; root-vegetable-purees; teething-biscuits | Pb; Cd | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source is broader than this row; authors do not narrow to this exact matrix/format pair. | Cross-reference - section: Measured Values And Concentration Evidence |
Sources
Auto-generated from source-page frontmatter. The “Used on this page for” column is populated by the orchestrator’s POPULATE-SOURCE-LEGEND action; pending entries appear as *[awaiting synthesis]*.
| # | Citation | Year | Type | Used on this page for |
|---|---|---|---|---|
| 1 | Collado-Lopez et al. 2025. Concentrations of Heavy Metals in Processed Baby Foods and Infant Formulas Worldwide: A Scoping Review, Nutrition Reviews | 2025 | Peer-reviewed | Global scoping review reporting that rice/rice-mix baby foods had median Pb of 8 ppb and median As of 48 ppb, with 31% exceeding the Pb maximum and 30% exceeding the As maximum used by the authors, providing broad rice-based product-category monitoring context |
| 2 | FDA 2024. Analytical Results for Arsenic, Lead, Cadmium, and Mercury in Food Intended for Babies and Young Children - TEP (FY2009-FY2024), FDA analytical results table | 2024 | Government dataset | FY2009-FY2024 FDA compliance program providing tAs, Cd, and Pb summary rows for the rice-named grain-based snack subset (N=2, context only) and the broader grain-based snack pool (N=91) where rice status is not isolated |
| 3 | Spungen et al. 2024. Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020, Food Additives & Contaminants: Part A | 2024 | Peer-reviewed | FDA Total Diet Study exposure analysis identifying teething biscuits as a named Pb signal (18 ppb hybrid mean), providing teething-format occurrence context where rice status is not specified |
| 4 | Bair 2022. A Narrative Review of Toxic Heavy Metal Content of Infant and Toddler Foods and Evaluation of United States Policy, Frontiers in Nutrition 9:919913 | 2022 | Peer-reviewed | US narrative review identifying rice-based weaning products as an arsenic concern and citing evidence of increased urinary inorganic arsenic metabolites in infants after weaning on rice products |
| 5 | Gu et al. 2020. Arsenic Concentrations and Dietary Exposure in Rice-Based Infant Food in Australia, International Journal of Environmental Research and Public Health 17(2):415 | 2020 | Peer-reviewed | tAs and iAs in 21 Australian rice crackers by ICP-MS, with nearly 75% of rice-based infant foods exceeding the EU 100 ppb iAs maximum; the rice-cracker subcategory is the primary speciated-arsenic occurrence source for the snack format on this page |
| 6 | Gardener et al. 2019. Lead and cadmium contamination in a large sample of United States infant formulas and baby foods, Science of the Total Environment | 2019 | Peer-reviewed | 564-sample US baby-food Pb/Cd study reporting that cadmium was elevated in foods containing rice and lead was elevated in foods containing rice and sweet potatoes; includes a snacks category with broad all-sample percentiles |
| 7 | Hernandez et al. 2019. Cr(VI) and Cr(III) in milk, dairy and cereal products and dietary exposure assessment, Food Additives & Contaminants Part B: Surveillance | 2019 | Peer-reviewed | French speciated-chromium study finding Cr(VI) not detected in any of 68 dairy and cereal samples including puffed rice and breakfast cereals; supports the Cr(VI) data-gap designation for rice-based snack matrices |
| 8 | Signes-Pastor et al. 2018. Infants’ dietary arsenic exposure during transition to solid food, Scientific Reports | 2018 | Peer-reviewed | Infant biomarker study citing baby rice, rice cereals, and rice crackers with iAs up to 323 ppb; used as secondary citation for rice-product arsenic context on this page, with the 2016 paper providing the primary occurrence measurements |
| 9 | C-C et al. 2016. Methylmercury varies more than one order of magnitude in commercial European rice, Food Chemistry | 2016 | Peer-reviewed | MeHg and tHg in 87 commercial European rice products including 7 pre-cooked baby-food rice and 2 toddler rice cakes, finding no significant difference between baby-rice MeHg and other rice products; provides the mercury occurrence evidence for rice-based snack formats |
| 10 | FSA 2016. Survey of metals in commercial infant foods, infant formula and non-infant specific foods, UK Food Standards Agency report FS102048 | 2016 | Government report | UK survey providing category-average iAs (58-62 ppb), Cd (24 ppb), Pb (10 ppb), and Ni (292 ppb) for sweet and savoury snacks; rice status not isolated within this broad snack category |
| 11 | Signes-Pastor et al. 2016. Inorganic arsenic in rice-based products for infants and young children, Food Chemistry | 2016 | Peer-reviewed | Primary iAs occurrence paper for rice crackers marketed to infants and young children, reporting US rice-cracker median 79 ppb (range 8-273 ppb) and EU median 111 ppb (range 18-211 ppb) on a dry-weight basis |