Heavy metals in Pancakes

Overview

This provisional ingredient page records source-specific measurements for pancakes. Its population contamination profile has not been synthesized. See Ingredients for the ingredient inventory.

Heavy metal contamination profile

The profile fields remain pending until an evidence synthesis supports a population estimate. Source observations are listed separately below.

Reported measurements

The population contamination profile on this page is unchanged. These notes do not set a typical value, an upper-tail value, or a certification limit.

Pancakes, Hong Kong agency survey

The Centre for Food Safety follow-up study is an agency report. Table 2 pancake aluminum, as purchased, n = 9, mean 55 mg/kg, range ND to 490 mg/kg. The mean uses half the detection limit for non-detects. The detection limit is 0.5 mg/kg. Waffle (mean 270 mg/kg) is not used. Pancake mix (mean 290 mg/kg) is not used. Aluminum only. Data gap for the other metals. Aluminium in Food, a follow-up study

Pancake aluminum as purchased, and the infant hair study

The agency pancake row on this page reports aluminum as purchased, with a mean that uses half the detection limit for non-detects. That is a product result. The gut record that names aluminum is a mother-infant hair study: Bifidobacterium was higher under high aluminum and high manganese together. A mix manufacturer or griddle brand should keep aluminum-containing additive use, the aluminum number, and microbiome language in separate fields.

Xiong et al. 2025, per WikiBiome source summary, DOI 10.1038/s41467-025-60508-8, followed 146 mother-infant pairs, with maternal hair trace elements measured in 119 mothers. Shannon diversity of the infant gut at 3 months correlated positively with selenium and negatively with copper. Bifidobacterium relative abundance increased under high aluminum and high manganese together, so the note does not separate aluminum from manganese. The note states that high copper and arsenic may enrich antibiotic resistance genes. Hair concentrations are not printed. The direction is prenatal trace-element biomarkers toward the infant gut. Hair is not a food sample.

Study table

What remains uncertain

Hair concentrations are not printed, and aluminum is not separated from manganese. The cohort’s samples were maternal hair and infant stool, not pancakes, pancake mix, or baking powder. No other gut study cited here isolates aluminum. That is the limit of the aluminum evidence cited here.

FDA TDS FY2018–FY2020 source observations

FDA measured the prepared foods named below. Each row describes that food and preparation, not every form of this ingredient. Values are µg/kg (ppb) on the FDA sample basis. ND means not detected; it is not a measured zero. Reporting limits can vary between composites. FY2018-FY2020 TDS Elements Analytical Results

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.

1. Aluminium in Food, a follow-up studyCentre for Food Safety, Hong Kong · Risk Assessment Studies Report, Centre for Food Safety · 2016 · www.cfs.gov.hkGovernment
2. Prenatal exposure to trace elements impacts mother-infant gut microbiome, metabolome and resistome during the first year of lifeXiong S, Xie B, Yin N, Zhu H, Gao H, Xu X, et al. · Nature Communications · 2025 · doi.org/10.1038/s41467-025-60508-8Peer-reviewed
3. FY2018-FY2020 TDS Elements Analytical ResultsU.S. Food and Drug Administration · FDA Total Diet Study · 2022 · www.fda.govDataset

Sources

Sources catalogued for this page. The last column says how each source is used here.

Update history

No substantive edit history is available in this build. The full commit record is available in git.