Fumaric acid and salts of fumaric acid

Fumaric acid is an acidulant with an unusually sharp, persistent sourness, used in dry mixes, tortillas and confectionery. It dissolves slowly, which is an advantage where a delayed acid release is wanted.

Where it is and isn’t permitted

Status of Fumaric acid and salts of fumaric acid by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted, with conditions21 CFR 172.350retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Produced by chemical synthesis from maleic anhydride, or by fungal fermentation. It occurs naturally in many plants and in human metabolism.

  • Vegan
  • Vegetarian

Every name it appears under

1 recorded name. A label may use any of them.

As it appears in regulation

  • Fumaric acid and salts of fumaric acid

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/fumaric-acid-and-salts-of-fumaric-acid.json