Overview
This page is a scaffolded entry for HMTc Taxonomy v2.0 Category 17 (Pet Foods), Row 2: Complete & balanced canned/wet. Studies for this row are still being read. Where a section is empty, the row has not yet accumulated contributing sources of the required kind.
Literature scope
The Heavy Metal Index source corpus is currently focused on food and food-contact materials. This page documents an HMTc Taxonomy v2.0 row in the category Pet Foods for which no peer-reviewed primary or government sources have yet been ingested. The page exists as the routing destination for future ingest. Until sources land, the literature-evidence sections below are deliberately empty rather than guessed; HMTc certification thresholds for products in this row continue to be developed under the certification program at heavymetalcertified.com, not on this public page.
Reading guide
Legal, regulatory and retailer teams can use the cited measurements, applicable limits and study limitations to assess the evidence for this category.
Quality teams can examine product form, measurement basis and sources of variation. Journalists and researchers can follow each reference to the original findings and methods.
Related tools and pages: heavymetalcertified.com · methodology
Evidence summary
Source Evidence Inventory
Sources for this row will be listed here once they are catalogued.
Supporting evidence and scope
Broader-scope sources for this row will be listed here when they are catalogued.
Federal/Regulatory Limits vs Field Findings
Regulatory limits for this row will be listed here once they are catalogued.
Controls and mitigation
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 — Not yet catalogued.
- Agronomic levers — Not yet catalogued. (See Agronomic mitigation for general agronomic mitigation context.)
- Processing levers — Not yet catalogued. (See Processing mitigation.)
- Formulation levers — Not yet catalogued. (See Formulation mitigation.)
- Testing and QC levers — Not yet catalogued. (See Testing and quality-control mitigation when published.)
- Packaging and storage levers — Not yet catalogued. (See Packaging and storage mitigation when published.)
China imported pet foods: preprint evidence
Du et al.’s 2024 preprint reports 14 canned pet foods sampled in China. Table 5 gives no Pb-positive samples, two Cd-positive samples,14 Cr-positive,12 Hg-positive and 14 As-positive samples. Positive-only means were Cd 0.0200, Cr 1.21, total Hg 0.012 and total As 0.09 mg/kg. The cadmium values conflict with the stated method limits; nutritional completeness and moisture basis are not documented. These version-specific summaries share the cohort in the later 2025 publication and provide broad product context. Individual and Combined Contamination of the Heavy Metals in Commercial Cat and Dog Food
Sources for this row will be listed here once they are catalogued.
How standards math uses this page
HMT&C certification thresholds for this row are developed under the certification program at heavymetalcertified.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
Public regulatory events for this row, such as recalls and import alerts, will be listed here as they are catalogued.
Methodology
This page reports what the cited sources say about heavy-metal concentrations in complete & balanced canned/wet. Speciation is non-substitutable (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 heavymetalcertified.com, not on this page; this public page reports literature evidence only.
The applicable regulatory jurisdictions for this row are: FDA CVM, AAFCO, EU Directive 2002/32.
References
Works cited in this page’s text, in first-appearance order. See Sources for this page’s source inventory. Each title links to a source record with bibliographic details, reported findings, and document provenance.
Sources
Sources for this row will be listed here once they are catalogued.
Sources
Source records associated with this topic. Inclusion does not establish that every finding applies to this product or ingredient. References above identify works cited in the text.
| # | Citation | Year | Type | Used on this page for |
|---|---|---|---|---|
| 1 | Du et al. 2025. Individual and combined contamination of the toxic metals in commercial cat and dog food, Scientific Reports | 2025 | Peer-reviewed | CN Pb, Cd, Cr, tHg, tAs occurrence in 93 imported cat and dog food products from the Chinese market (produced 2021-2022); 45 cat food, 48 dog… (n=93) |
| 2 | Du et al. 2024. Individual and Combined Contamination of the Heavy Metals in Commercial Cat and Dog Food, Research Square, version1, posted8September2024 | 2024 | Preprint | CN Pb, Cd, Cr, tHg, tAs occurrence in 93imported pet foods:45cat48dog;79dry14canned; China retailmarket,2021–2022production; samecohort asDu2025 (n=93) |
Update history
No substantive edit history is available in this build. The full commit record is available in git.