Ingredient · E338

Phosporic Acid

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Source
Not animal-derived
Allergen
No
Role in food
Phosphoric acid is used as an acidity regulator and flavoring agent in foods and …

What it is

Phosphoric acid is a mineral acid that occurs naturally in plants and animals. In food, it is typically produced industrially from phosphate rock. It is a clear, colorless liquid that is odorless.

Why it's used

Phosphoric acid is used as an acidity regulator and flavoring agent in foods and beverages. It provides a tart or sour taste, most famously in colas and other soft drinks. It can also act as a preservative and a chelating agent.

Health notes

Phosphoric acid is generally recognized as safe (GRAS) by the FDA for use in food. It is a common ingredient in many processed foods and beverages. JECFA and EFSA have evaluated phosphoric acid and its salts. Some studies suggest that high consumption of phosphoric acid-containing beverages may be linked to lower bone mineral density, but evidence is mixed and more research is needed.

Allergen info

Not a major allergen.

Products containing Phosporic 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.