As An Anti-caking Agent

Silicon dioxide is a naturally occurring compound made of silicon and oxygen. It is found in sand and is a major component of quartz. In food, it is produced synthetically for purity and consistency.

Silicon dioxide is used as an anti-caking agent. It prevents powdered or granulated ingredients from clumping together, ensuring they flow freely. This is common in seasoning mixes, salts, and dried herbs.

Silicon dioxide is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent. It is poorly absorbed by the body and passes through the digestive system. JECFA has evaluated silicon dioxide and established acceptable intake levels. It is not associated with significant health concerns when consumed at typical levels found in food.