Ingredient · E551

Silicon Dioxide As Anti-caking Agent

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add silicon dioxide to powdered and granulated foods to prevent clumping and ensure …

What is Silicon Dioxide As Anti-caking Agent?

Silicon dioxide is a naturally occurring compound made of silicon and oxygen. It is found in sand and quartz. For food use, it is typically manufactured synthetically from silica.

Is Silicon Dioxide As Anti-caking Agent vegan?

Silicon Dioxide As Anti-caking Agent is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Silicon Dioxide As Anti-caking Agent a major allergen?

Not a major allergen.

What is Silicon Dioxide As Anti-caking Agent used for?

Manufacturers add silicon dioxide to powdered and granulated foods to prevent clumping and ensure a free-flowing texture.

Is Silicon Dioxide As Anti-caking Agent safe?

Silicon dioxide is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent.

Why it's used

Manufacturers add silicon dioxide to powdered and granulated foods to prevent clumping and ensure a free-flowing texture. It acts as an anti-caking agent, absorbing moisture and keeping particles separate. It is commonly found in spices, powdered mixes, and shredded cheeses.

Health notes

Silicon dioxide is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent. Regulatory bodies like JECFA and EFSA have evaluated silicon dioxide and found it safe for consumption within specified limits. It is not absorbed by the body and passes through the digestive system unchanged. There are no significant health controversies associated with its use at typical dietary levels.

Allergen info

Not a major allergen.

Foods that contain Silicon Dioxide As Anti-caking Agent

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Last updated: October 5, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.