Ingredient

Natural Sour

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Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Manufacturers add natural sour to foods to provide a tangy or sour flavor. It …

What it is

Natural sour, also known as natural sour flavor, is a liquid flavoring derived from natural sources. It is typically produced through fermentation processes involving natural ingredients to create a sour taste profile.

Why it's used

Manufacturers add natural sour to foods to provide a tangy or sour flavor. It is commonly found in baked goods such as breads and buns, where it can contribute to a sourdough-like taste without the need for a traditional sourdough starter.

Health notes

Natural sour is generally recognized as safe (GRAS) by the FDA when used as a flavoring. Regulatory bodies like JECFA and EFSA have evaluated many flavoring substances, and natural sour is considered safe at typical consumption levels. Evidence does not suggest adverse health effects from its use in food.

Allergen info

Natural sour is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Natural Sour

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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.