Eggs
This page is a scaffolded entry for HMTc Taxonomy v2.0 Category 11 (Meat, Poultry, and Eggs), Row 6: Eggs. Evidence ingest into this row is in progress; this page is the routing destination for source-page declarations of products: [eggs-product]. Sections below are populated by the routing layer (CLAUDE.md Part 5b) as sources land. Where a section is empty, the row has not yet accumulated contributing sources of the required kind.
Who this page is for
- Brand legal teams
- What the peer-reviewed and regulatory literature reports for heavy-metal occurrence in Eggs, with applicable regulatory caps and source-traceable findings. Use this page to evaluate certification or class-action exposure on a literature-anchored basis.
- Brand regulatory affairs / QA
- The current evidence base for Eggs, the levers most-effective at reducing heavy-metal load, and the applicable regulatory limits with jurisdiction and basis.
- Retailers and category buyers
- The row-level assortment risk profile and where the literature distinguishes higher-risk from lower-risk product configurations within this row.
- HMT&C staff (internal)
- HMT&C certification thresholds for products in this row are developed under the certification program at heavymetaltested.com, not on this public page. The Index and HMT&C operate on the same evidence base but apply different publication rules; see the methodology for the separation.
Methodology
This page reports what the cited sources say about heavy-metal concentrations in eggs. Speciation is non-substitutable per CLAUDE.md Part 14 (iAs vs tAs, MeHg vs tHg, Cr-VI vs total Cr). Basis is preserved (finished-product as sold unless the source specifies otherwise; see each row for the basis label). Non-detect handling follows each source’s reporting convention. Pooling is avoided across LOD/LOQ, period, geography, and analytical-basis differences. HMT&C certification thresholds for products in this row are developed under the certification program at heavymetaltested.com, not on this page; this public page reports literature evidence only.
The applicable regulatory jurisdictions for this row are: FDA, USDA (meat/poultry inspection), EU, Codex.
Literature Evidence Summary
Pending ingest. The routing layer will surface direct-row-fit sources here as they are added to the corpus with products: [eggs-product] in source-page frontmatter.
Source Evidence Inventory
Pending ingest. The routing layer populates this section from the source-page set declaring products: [eggs-product].
Broad Product Context: Author-Scope Index
Pending ingest. The routing layer surfaces sources whose author-stated scope is broader than this row (route_kind: broad_product_context) as they are added.
Federal/Regulatory Limits vs Field Findings
Pending ingest. The applicable regulatory jurisdictions for this row are recorded in the page frontmatter; the crosswalk table is generated by tools/apply-product-crosswalk-sections.mjs once regulation pages and field-evidence sources are routed to this row with structured limit values.
Levers to reduce contamination
Practical interventions to reduce heavy-metal load in this row, ordered by impact magnitude. Each lever names the magnitude of the effect with a cited source; cross-links to dedicated Mitigation pages where they exist.
- Sourcing levers — Pending ingest.
- Agronomic levers — Pending ingest. (See Agronomic mitigation for general agronomic mitigation context.)
- Processing levers — Pending ingest. (See Processing mitigation.)
- Formulation levers — Pending ingest. (See Formulation mitigation.)
- Testing and QC levers — Pending ingest. (See Testing and quality-control mitigation when published.)
- Packaging and storage levers — Pending ingest. (See Packaging and storage mitigation when published.)
How standards math uses this page
HMT&C certification thresholds for this row are developed under the certification program at heavymetaltested.com, not on this page. The row-standard for this row is an aggregate computed from the contributing source pool in the row’s native finished-product basis; it is not a per-source decoration of any single value cited on this page. This public page reports literature evidence only.
Historical recalls and enforcement
Pending ingest. Regulatory events (recalls, enforcement actions, import alerts) relevant to this row will be added as agency records are ingested into the corpus.
Sources
Pending ingest. The Source Legend below is auto-generated by tools/evidence/build-source-legend.mjs once source pages declaring products: [eggs-product] are added.
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 | Li et al. 2026. Heavy metal concentrations in Chinese chicken eggs: insights from comparative study of urban and mining areas, PeerJ | 2026 | Peer-reviewed | CN Cr, tAs, Cd, Pb, Ni occurrence in 70 free-range eggs from 4 non-mining cities and 3 mining areas (Wuchuan mercury mine, Danzhai mercury mine, Emin… (n=90) |
| 2 | Cosmas et al. 2024. An evaluation of the health risks, antibiotic residue levels and potentially toxic ingredients in Nigerian poultry products, International Journal of Agricultural Invention | 2024 | Peer-reviewed | NG tAs, Pb, Cd occurrence in Broiler muscle, gizzard, yolk, and albumen samples from four poultry farms in Nigeria (n=36) |
| 3 | Guerrini et al. 2024. Content of Toxic Elements (Arsenic, Cadmium, Mercury, Lead) in Eggs from an Ethically Managed Laying Hen Farm, Animals | 2024 | Peer-reviewed | IT tAs, Cd, tHg, Pb occurrence in 141 eggs from 5 hen genotypes at a rural ethical farm in Puglia, Italy; 60 organic supermarket eggs… (n=201) |
| 4 | Bazzaz et al. 2023. Determination of some heavy metals resides in different types of poultry production, Tikrit Journal for Agricultural Sciences | 2023 | Peer-reviewed | IQ Cu, tAs, Pb occurrence in Imported and local poultry products consumed in Erbil city, including chicken thigh, chicken breast, quail meat, and quail… |
| 5 | Iqbal et al. 2023. Evaluation of Heavy Metals Concentration in Poultry Feed and Poultry Products, Saudi Journal of Medical and Pharmaceutical Sciences 9(7): 489-495 | 2023 | Peer-reviewed | PK Pb, Cd, Cr, tHg, Fe occurrence in 6 solid feeds, 6 liquid feeds (water), 33 livers (composite from 6 farms), 33 breast muscles (composite), 33… (n=39) |
| 6 | Rokanuzzaman et al. 2022. Assessment of Heavy Metals and Trace Elements in Eggs and Eggshells of Gallus gallus domesticus, Coturnix coturnix and Anas platyrhynchos from Bangladesh, Saudi Journal of Biomedical Research | 2022 | Peer-reviewed | BD Pb, Cd, Cr, Cu, Fe, Zn occurrence in Five egg-content samples and five eggshell samples collected from the Jahangirnagar University area of Savar, Bangladesh, covering indigenous… (n=10) |
| 7 | Wang et al. 2020. Contamination and health risk assessment of lead, arsenic, cadmium, and aluminum from a total diet study of Jilin Province, China, Food Science & Nutrition | 2020 | Peer-reviewed | CN Pb, tAs, Cd, Al occurrence in Jilin Province total-diet-study composites across 12 food groups and 48 product groups, with consumption inputs for 7700 residents… |
| 8 | Wang et al. 2019. Dietary Lead Exposure and Associated Health Risks in Guangzhou, China, International Journal of Environmental Research and Public Health | 2019 | Peer-reviewed | CN Pb occurrence in Food safety risk monitoring samples from Guangzhou, China, collected during 2014-2017 across 27 food categories; consumption inputs came… (n=6339) |
| 9 | Mahbub et al. 2018. Detection of heavy metals in poultry feed, meat and eggs, Asian-Australasian Journal of Food Safety and Security | 2018 | Peer-reviewed | BD Cr, Pb, tAs occurrence in Poultry feed, meat, and egg samples from major poultry-producing areas of Bangladesh |
| 10 | Baxter et al. 2015. Total Diet Study of metals and other elements in food, Food and Environment Research Agency report for the UK Food Standards Agency, Fera report 15/06, project FS102081 | 2015 | Government report | GB Al, Sb, tAs, iAs, Ba, Cd, Cr, Cu, Pb, Mn, tHg, Mo, Ni, Pd, Pt, Sn, Tl, Zn occurrence in 3312 retail food samples from 24 UK locations, combined into 138 prepared-as-consumed food-category composites and 28 food-group composites (n=3312) |
| 11 | Islam et al. 2015. The concentration, source and potential human health risk of heavy metals in the commonly consumed foods in Bangladesh, Ecotoxicology and Environmental Safety | 2015 | Peer-reviewed | BD Cr, Ni, Cu, tAs, Cd, Pb occurrence in Commonly consumed meat, egg, fish, milk, vegetable, cereal, and fruit foods collected from agriculture fields, farms, river, and… |
| 12 | Uneyama et al. 2007. Arsenic in various foods: Cumulative data, Food Additives & Contaminants | 2007 | Peer-reviewed | JP/US/GB tAs, iAs occurrence in Cumulative review of arsenic measurements in food from PubMed, Japanese local-authority research databases, and national food-safety surveillance reports;… |
Page history
The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.
| Commit | Date | Description |
|---|---|---|
| ae6c129 | 2026-07-01 | feat(auth): large login + role-based signup screens (design, burgundy) |