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E270AcidulantLow concern
Lactic Acid
In plain words
The short version
The natural acid of sour milk — a mild, ubiquitous acidulant and preservative.
Why it's green
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Safety profile
No ADI required — naturally occurring central intermediate in human metabolism. GRAS in the US. Infants under 3 months should not receive D-lactic acid due to limited metabolic capacity; food-grade is typically L- or DL-isomer.
The detail
Educational information only. Not medical or dietary advice.