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E400ThickenerLow concern
Alginic Acid
In plain words
The short version
A seaweed-derived polysaccharide used to thicken, stabilize, and form heat-stable gels with calcium.
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 — regarded as safe. Not digested or absorbed; passes through the gut as soluble fiber. Very high intakes may modestly reduce mineral absorption.
The detail
Educational information only. Not medical or dietary advice.