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E366✅ Safe

Potassium fumarate

Category

Antioxidants & Acidity Regulators

Function

Acidity regulator

EU: ApprovedUS: Not Evaluated

Safe. Insufficient data to determine safety.

Official Sources

EU Register — EU Register entry for E366(2026-07-01, tier 1)
EFSA — EFSA OpenFood Tox database(2026-07-01, tier 1)
FDA — FDA Substances Added to Food (search: E366)(2026-07-01, tier 1)
Codex Alimentarius — Codex GSFA entry for E366(2026-07-01, tier 2)

Last checked: 2026-07-20