Ingredient · E270

Acidity Regulator: Lactic Acid

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Source
Not animal-derived
Allergen
No
Role in food
Lactic acid is used as an acidity regulator to control the pH of foods, …

What it is

Lactic acid is a naturally occurring organic acid found in milk and other foods. It is produced industrially through the fermentation of carbohydrates, such as corn starch or sugarcane, by specific bacteria. This process yields a clear, colorless liquid.

Why it's used

Lactic acid is used as an acidity regulator to control the pH of foods, enhancing flavor and acting as a preservative. It is commonly found in dairy products, baked goods, pickles, olives, and sauces, where it contributes a mild sour taste and helps extend shelf life.

Health notes

Lactic acid is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) for use in food. It is a normal product of human metabolism. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the European Food Safety Authority (EFSA) have evaluated lactic acid and its salts, finding them safe for consumption. There are no widespread health controversies associated with its use at typical dietary levels.

Allergen info

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

Products containing Acidity Regulator: Lactic Acid

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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.