Propionic Acid
PropionatesPropionic Acid SaltPropionic Acid Ester
Preservative
Propionic acid is a type of acid that helps prevent mold and yeast from growing in food. It's often used in bread, cheese, and other foods to keep them fresh for longer.
Low Concern
Source: FDA GRAS list
Propionic acid is generally considered safe for consumption by the FDA, but high doses may cause stomach upset in some individuals.
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Last updated: May 16, 2026