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E334AcidulantLow concern
Tartaric Acid
In plain words
The short version
A natural fruit acid from grapes — central to wine chemistry and a common acidulant.
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
ADI of 0–30 mg/kg body weight (combined with tartrates). Generally well-tolerated. High doses can be laxative due to incomplete absorption. The L-(+)-isomer is the natural and approved form.
The detail
Educational information only. Not medical or dietary advice.