Ingredient

Calcium Silicate

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 is Calcium Silicate?

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

Is Calcium Silicate vegan?

Calcium Silicate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Calcium Silicate gluten-free?

It does not contain gluten.

Is Calcium Silicate a major allergen?

Calcium silicate is not derived from any of the nine FDA major allergens.

What is Calcium Silicate used for?

Manufacturers use calcium silicate as an anti-caking agent to prevent powdered foods from clumping.

Is Calcium Silicate safe?

In the U.S., calcium silicate is generally recognized as safe (GRAS) by the FDA for use as an anti-caking agent.

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.

Foods that contain Calcium Silicate

Compare products →
Amazon links are paid links. As an Amazon Associate I earn from qualifying purchases. About these links

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

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.