Ingredient · E300

Ascorbic Acid - Antioxidant

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Source
Not animal-derived
Allergen
No
Role in food
Ascorbic acid is widely used as an antioxidant to prevent foods from browning or …

What it is

Ascorbic acid is a form of vitamin C, a nutrient that occurs naturally in many fruits and vegetables. It can be produced commercially through a process that often starts with glucose derived from corn or other plant sources.

Why it's used

Ascorbic acid is widely used as an antioxidant to prevent foods from browning or spoiling. It helps maintain the color and flavor of processed foods and can also be added to enhance nutritional value.

Health notes

Ascorbic acid is generally recognized as safe (GRAS) by the FDA for use in food. It is an essential nutrient, and the U.S. National Academies have established a tolerable upper intake level. International bodies like JECFA and EFSA have also evaluated ascorbic acid and its salts. While generally considered safe, very high doses can cause digestive upset in some individuals.

Allergen info

Ascorbic acid is not derived from any of the nine major allergens. It does not contain gluten.

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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.