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Butyric Acid
Butyric Acid
Low concern
Naturally produced by colonic bacteria fermenting fiber; important energy source for colonocytes. GRAS as a flavoring substance.
Found in
13 products
What it is
Short-chain fatty acid (C4); naturally found in butter, parmesan cheese, and human gut (microbial fermentation product).
Flavoring; precursor for esters used in artificial flavors.
Why it's flagged
- Strong odor; corrosive in concentrated form
What regulators actually say
"Butyric acid (CAS Reg. No. 107-92-6) is the chemical butanoic acid... is generally recognized as safe when used as a flavoring agent in accordance with current good manufacturing practice."
Regulatory status
United States — FDA
GRAS as flavoring substance (21 CFR 184.1101 / FEMA GRAS).
European Union — EFSA
Authorized flavoring under Regulation 1334/2008.
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