← Back to all additives

E551✅ Safe

Silicon dioxide (Silica)

Category

Acidity Regulators & Anti-caking Agents

Function

anti-caking agent

EU: ApprovedUS: Not Evaluated

Safe. Generally recognized as safe in typical consumption amounts.

Official Sources

EU Register — EU Register entry for E551(2026-07-01, tier 1)
EFSA — EFSA OpenFood Tox database(2026-07-01, tier 1)
FDA — FDA Substances Added to Food (search: E551)(2026-07-01, tier 1)
Codex Alimentarius — Codex GSFA entry for E551(2026-07-01, tier 2)

Last checked: 2026-07-13