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E280PreservativeLow concern
Propionic Acid
In plain words
The short version
A short-chain fatty acid antifungal — the parent of calcium propionate, naturally produced in Swiss cheese.
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 assigned by JECFA. Considered safe at food levels. Naturally produced in the human gut by fermentation of dietary fiber. Some anecdotal reports of migraines or irritability at very high industrial exposure.
The detail
Educational information only. Not medical or dietary advice.