Ingredient

Calcium Silicate

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers use calcium silicate as an anti-caking agent to prevent powdered foods from clumping. …

What it is

Calcium silicate is a synthetic compound made from calcium oxide and silicon dioxide. It is a fine, white powder that is insoluble in water.

Why it's used

Manufacturers use calcium silicate as an anti-caking agent to prevent powdered foods from clumping. It helps maintain a free-flowing texture in products like salt, spices, and powdered mixes.

Health notes

In the U.S., calcium silicate is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent. International bodies like JECFA have also evaluated it. At typical consumption levels found in food, it is not associated with adverse health effects.

Allergen info

Calcium silicate is not derived from any of the nine FDA major allergens. It does not contain gluten.

Products containing Calcium Silicate

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Last updated: September 28, 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.