Fumaric Acid (E 297)

Last reviewed October 19, 2026

In plain words: Fumaric acid (E 297) is a tart organic acid used in dry drink mixes, confectionery, desserts and fillings. It is not the same substance as the drug dimethyl fumarate.

What the evidence review says

Fumaric acid is a tart acid used in drink mixes and sweets. We found no notable concern at the levels allowed in food. Older high-dose animal findings were not the basis of the current evaluation. EFSA had not yet published its updated review as of its 2024 data call.

No notable concern at the levels authorized in food. Older high-dose animal findings, including testicular changes after injection in rabbits, were not the basis of the current oral evaluation. The open point is procedural: EFSA had not yet published its food-additive re-evaluation as of the 2024 data call, and the EU still uses category maximum levels rather than unrestricted use.

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This page is for general education. It is not medical advice and does not replace advice from your doctor, pediatrician, allergist or registered dietitian. Research changes; we review these pages when new evidence or rules come out. Last reviewed October 19, 2026.