Ingredient · E551

E551 As Anticaking Agent

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add silicon dioxide to foods as an anticaking agent. It helps prevent powdered …

What is E551 As Anticaking Agent?

Silicon dioxide, also known as E551, is a form of silica, which is a common compound found naturally in sand and quartz. It is manufactured by vaporizing silicon in a furnace and then reacting it with oxygen. The resulting fine powder is used in food products.

Is E551 As Anticaking Agent vegan?

E551 As Anticaking Agent is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is E551 As Anticaking Agent gluten-free?

It does not contain gluten.

Is E551 As Anticaking Agent a major allergen?

Silicon dioxide is not derived from any of the nine major allergens recognized by the FDA.

What is E551 As Anticaking Agent used for?

Manufacturers add silicon dioxide to foods as an anticaking agent.

Is E551 As Anticaking Agent safe?

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

Why it's used

Manufacturers add silicon dioxide to foods as an anticaking agent. It helps prevent powdered ingredients from clumping together, ensuring a free-flowing product. It is commonly found in seasoning mixes, salts, marinades, herbs, spices, and baking mixes.

Health notes

Silicon dioxide is generally recognized as safe (GRAS) by the FDA for use as an anticaking agent. Regulatory bodies like JECFA and EFSA have evaluated silicon dioxide and have not set a numerical limit for its acceptable daily intake. Studies on silicon dioxide at typical dietary levels have not shown adverse health effects. There are no major controversies surrounding its use in food.

Allergen info

Silicon dioxide is not derived from any of the nine major allergens recognized by the FDA. It does not contain gluten.

Foods that contain E551 As Anticaking Agent

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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.