Ham

Overview

This ingredient stub was created during the FDA FY2018-FY2020 Total Diet Study element-results ingest so future source ingests have a stable destination for this food matrix. FDA reports this item as TDS Food 17, “Ham, cured (not canned), baked.” FY2018-FY2020 TDS Elements Analytical Results

Why this commodity accumulates heavy metals

Ham, as a cured pork product derived from the hind leg of swine, accumulates heavy metals through pathways similar to those governing other muscle meats: dietary intake from feed and water, and limited metabolic accumulation in soft tissue relative to visceral organs. Pork muscle generally presents low concentrations of Cd and Pb because these metals partition preferentially to the kidney cortex and liver in swine rather than to skeletal muscle. The curing process introduces several additives, including sodium chloride, sodium nitrite, and in some products inorganic phosphate salts and polyphosphate binders. Phosphate-based curing agents derived from impure mineral sources can introduce trace Cd, though food-grade phosphate specifications are intended to minimize this pathway. Cadmium in the feed chain from phosphate-fertilized crop inputs may also contribute to dietary Cd load in swine, ultimately manifesting at low levels in muscle tissue. Lead in pork muscle is typically near or below reporting limits in modern commercial production. The FDA FY2018-FY2020 Total Diet Study found detectable Pb in some ham samples at low concentrations, with Cd also detected at the high end of the distribution, reflecting the population variance across US retail sources FY2018-FY2020 TDS Elements Analytical Results.

Heavy metal contamination profile

Per-analyte snapshot derived from the machine-readable contamination_profile in the frontmatter above. data gap indicates the literature has been reviewed for this commodity-analyte combination and no usable occurrence data was found (a finding, not a placeholder). The Key sources column shows the top 2-3 contributing sources by year and sample size, with numbered wikilink aliases.

FDA TDS FY2018-FY2020 Evidence

The normalized row-level data for this TDS food is stored in data/evidence/fda_tds_fy2018_2020_element_results_samples.csv, with per-food/per-analyte summaries in data/evidence/fda_tds_fy2018_2020_summary_by_food_analyte.csv. Concentrations are retained as FDA reported them, with the reporting-limit column preserved separately; reported zeroes are not rewritten as <LOD unless a source explicitly says to do so. FY2018-FY2020 TDS Elements Analytical Results

Routing

This node is linked from the ingredient index and the FDA TDS source routing table.

Contamination Profile State

Per-analyte state — populated, in progress, or declared data gap — is carried authoritatively in the machine-readable contamination_profile frontmatter and the contamination-profile table above. Ingredient-level values belong here; finished-product values belong on the relevant product-category page.

FDA TDS FY2018-FY2020 Occurrence Values

FDA Total Diet Study FY2018-FY2020 reports prepared/composite-food concentration distributions for this ingredient as TDS food “Ham, cured (not canned), baked” (FY2018-FY2020 TDS Elements Analytical Results). Values are in ppb-equivalent on the basis FDA reported. The full sample-level data are stored in data/evidence/fda_tds_fy2018_2020_element_results_samples.csv; per-analyte distributions in data/evidence/fda_tds_fy2018_2020_summary_by_food_analyte.csv. These distributions count as one source under Persistent Wiki Ingest Rule synthesis discipline; numerical values stay in body scratch until a second independent source is integrated.

Ranges by source, region, and variety

The FDA FY2018-FY2020 Total Diet Study measured ham (TDS Food 17, “Ham, cured (not canned), baked”) with n=27 composites and found Pb detectable with a maximum of 9.3 ppb; Cd detectable with a maximum of 4.7 ppb; U with a median of 1.4 ppb and a maximum of 3.6 ppb; tAs with a maximum of 4.6 ppb; and Cr with a maximum of 400 ppb and Ni with a maximum of 40 ppb 1. Mercury (tHg) was below the reporting limit across all samples. These distributions reflect the US retail market for cured ham. European survey data for cured pork products are not present in the current corpus; the EU maximum levels for pork muscle provide the operative regulatory reference. Canned versus non-canned formats are expected to differ for Sn, as canned ham would be subject to tin migration from the can; this page covers the non-canned, baked form.

Processing effects

Curing introduces salt, nitrite, and in some formulations phosphate compounds; the curing brine may absorb trace metals from the processing environment, but the magnitude of this pathway is not well-characterized in the current corpus. Baking or cooking after curing concentrates metals slightly on a wet-weight basis due to moisture loss, an effect that the FDA TDS preparation method (baked) would capture in the measured values. Smoking of ham, which is common for certain product categories, exposes the meat surface to combustion aerosols that may deposit trace metals, but the surface-to-volume ratio of a whole ham leg limits the penetration of any deposited contamination into the muscle interior. The phosphate-based additives used as water-retention agents in some ham products introduce a trace Cd pathway if the phosphate source is impure; food-grade phosphate specifications for the EU and US are designed to control this.

Ingredient-derivative risk

Ham is a finished product rather than an intermediate; the primary derivative-risk consideration is canned ham, where Sn migration from the can interior becomes relevant (see Ketchup for general treatment of canned products and tin migration). Diced ham used in ready-to-eat mixed products (soups, pasta dishes) is diluted with other ingredients; the per-serving metal burden from the ham component is reduced proportionally. Ham stock and broths derived from cured ham are not characterized in the current corpus.

Mitigation options

Sourcing levers

Selecting pork from producers who use feed from regions with low soil Cd and use food-grade phosphate additives with verified low-Cd purity specifications are the principal sourcing levers. Organ-meat-free ham specifications (excluding kidney or liver blends) keep Cd at muscle-tissue levels.

Agronomic levers

No quantified data on this lever in the current corpus; section will be expanded when relevant evidence is ingested.

Processing levers

Using food-grade phosphate additives with verified Cd specifications reduces the curing-additive metal pathway. Non-canned formats avoid the Sn migration pathway present in canned ham.

Formulation levers

No quantified data on this lever in the current corpus; section will be expanded when relevant evidence is ingested.

Testing and QC levers

Given detectable Pb (max 9.3 ppb) and Cd (max 4.7 ppb) in the TDS distribution FY2018-FY2020 TDS Elements Analytical Results, targeted lot-level verification for these analytes by ICP-MS is feasible and provides documentation for regulatory compliance against the EU 0.10 mg/kg Pb and 0.050 mg/kg Cd limits in muscle meat.

Packaging and storage levers

Non-canned ham (the form characterized on this page) is not subject to Sn migration; packaging in vacuum pouches or oxygen-scavenged modified-atmosphere trays does not introduce metal pathways.

Regulatory limits that apply

EU Regulation 2023/915 sets maximum levels for Pb in meat (muscle meat of pig) at 0.10 mg/kg wet weight and for Cd at 0.050 mg/kg wet weight EU Regulation 2023/915 maximum levels for contaminants in food. The FDA TDS maximum values for Pb (9.3 ppb) and Cd (4.7 ppb) in baked ham are well within these limits. No specific US statutory maximum for Pb or Cd in cured pork exists. The EU Cd limit for pig muscle of 0.050 mg/kg (50 ppb) is the operative regulatory cap for EU market access Commission Regulation (EU) 2023/915 cadmium maximum levels. Codex Alimentarius does not set a specific ML for Pb or Cd in cured pork muscle as a distinct category Codex Alimentarius — Maximum Levels for Cadmium in Food.

References

Works cited in this page’s text, in first-appearance order. This is not the full corpus for this page; it is only what the prose above draws on. The complete set of sources is listed under Sources below. Each title links to its source record, which carries the ingest receipt, the extracted values, and the file hash of the document it was built from.

1. FY2018-FY2020 TDS Elements Analytical ResultsU.S. Food and Drug Administration · FDA Total Diet Study · 2022 · www.fda.govDataset

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]*.

Update history

The five most recent substantive edits to this page, classified major (evidence or structure moved), correction (a published value or statement was wrong and has been fixed), or minor (narrative rewritten without changing the underlying evidence). Each description is derived from what the edit did to this page; the linked commit is the authoritative record, routine regeneration passes are excluded, and 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.