European Food Safety Authority (EFSA)

European Union · Advisory — risk assessment, not binding law · Established 2002 · Authored by Karen Pendergrass, Institute for Contaminant Standards · www.efsa.europa.eu

Quick read

EFSA is the European Union’s independent risk-assessment agency for food safety. It does not set legally binding limits; it issues health-based guidance — tolerable weekly or daily intakes (TWI/TDI) and, for genotoxic carcinogens like lead and inorganic arsenic, benchmark-dose (BMDL) reference points with no safe threshold. Read EFSA’s numbers as the scientific basis the European Commission then translates into binding maximum levels, not as enforceable limits in themselves.

Mandate & scope

Established in 2002 under Regulation (EC) No 178/2002, EFSA provides independent scientific advice on risks across the food chain. Its CONTAM Panel (Contaminants in the Food Chain) assesses dietary exposure to heavy metals and derives health-based guidance values; these opinions are advisory to the European Commission and the Member States, who hold the power to legislate binding limits. EFSA has issued opinions across the metals the Index tracks — lead (2010), inorganic arsenic (2009), cadmium (TWI 2.5 µg/kg b.w./week), methyl- and inorganic mercury, nickel (TDI, 2020), and aluminium (TWI, 2008). For lead and inorganic arsenic it declined to set a tolerable intake, concluding the dose-response shows no threshold below which effects are absent and instead reporting BMDL reference points. These values inform, but are legally distinct from, the binding maximum levels in Commission Regulation (EU) 2023/915.

Positions across metals

Where it diverges

EFSA’s intake-based guidance (TWI/TDI, per kilogram body weight) is not directly comparable with the European Commission’s binding concentration limits (mg/kg in a specific food) or with US FDA action levels (ppb in a product): they answer different questions on different bases. Where EFSA and JECFA both set intake values for the same metal, the differences are usually methodological. For methylmercury, EFSA’s TWI of 1.3 µg/kg b.w./week is modestly below JECFA’s PTWI of 1.6, reflecting a different critical study and uncertainty factors rather than a disagreement on the toxicology. For lead and inorganic arsenic, EFSA and JECFA converge on the more important point: no level of exposure can be assumed free of risk.

Lead

Cadmium

Inorganic arsenic

Methylmercury

Inorganic mercury

Nickel

Aluminium

Update log

Key documents

References

Positions, the update log, and key documents above are generated from the per-instrument regulation pages this body issues, via tools/build-regulator-pages.mjs. The wiki reports what EFSA has published; it does not endorse it. See HMTc separation policy for why reporting regulatory values is kept architecturally separate from certification threshold-setting.