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E406ThickenerLow concern
Agar
In plain words
The short version
A traditional vegan gelling agent from red seaweed — the basis of vegan jellies and microbiology plates.
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 specified. Considered safe and acts as a soluble fiber. Like other seaweed gums, very high intake can cause GI upset. No documented allergenicity.
The detail
Educational information only. Not medical or dietary advice.