Glucono Delta Lactone
Leavening AgentsCAS: 90-80-2
What it is
Glucono delta lactone (GDL) slowly releases acid when dissolved, used as a leavening acid and acidifier.
Why it's on the label
Provides slow acidification in baking and tofu production. Creates gradual acid release for even leavening.
What agencies say
FDA GRAS status. EFSA approved (E575). Permitted globally.
What research notes
Natural compound found in honey and fruit juices. JECFA confirms safety. Converts to gluconic acid.
Things to know
Generally safe. No significant concerns at food-use levels.
Sources
- FDA CFR 21
- EFSA Panel on Food Additives
- JECFA Monograph
A note on this page
This page is information only. It is not medical advice, and it is not a recommendation to buy, avoid, or use anything. If you have a health question, talk with a clinician who knows your history.
Frequently Asked Questions
v1.0Updated 9/12/2026