Ingredient

Casein

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Source
Animal-derived
Allergen
No
Role in food
Casein is used as a food additive for its nutritional value and functional properties. …

What it is

Casein is the main protein found in milk, making up about 80% of the protein in cow's milk. It is produced by the mammary glands of mammals. Casein is typically separated from milk whey during the cheese-making process.

Why it's used

Casein is used as a food additive for its nutritional value and functional properties. It can act as a binder, stabilizer, and emulsifier in various food products. It is commonly found in processed cheese, baked goods, and dairy-based beverages.

Health notes

In the US, casein is generally recognized as safe (GRAS) by the FDA when used as a food ingredient. It is a source of essential amino acids. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated casein, and the European Food Safety Authority (EFSA) has also assessed its safety. While generally considered safe, some individuals may experience digestive discomfort due to casein intolerance.

Allergen info

Casein is derived from milk, which is one of the nine FDA major allergens. It does not contain gluten.

Products containing Casein

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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.