Ingredient · E302

Calcium Ascorbate

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add calcium ascorbate to foods as an antioxidant to prevent spoilage and maintain …

What it is

Calcium ascorbate is a mineral salt of ascorbic acid (Vitamin C). It is produced by reacting ascorbic acid with a calcium source. It is often used as a source of Vitamin C in foods and supplements.

Why it's used

Manufacturers add calcium ascorbate to foods as an antioxidant to prevent spoilage and maintain color, and as a source of Vitamin C. It is commonly found in processed fruits and vegetables, beverages, and baked goods.

Health notes

Calcium ascorbate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of Vitamin C, which is essential for immune function and collagen production. Regulatory bodies like JECFA and EFSA have evaluated ascorbic acid and its salts, generally finding them safe for consumption within typical dietary levels. Evidence does not suggest significant health concerns at levels typically consumed from food.

Allergen info

Calcium ascorbate is not derived from any of the nine major allergens and does not contain gluten.

Products containing Calcium Ascorbate

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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.