Ingredient

Reb A

Source
Not animal-derived
Allergen
No
Role in food
Reb A is used as a high-intensity sweetener, providing sweetness with little to no …

What is Reb A?

Reb A, or Steviol glycoside Rebaudioside A, is a sweet compound found naturally in the leaves of the Stevia rebaudiana plant, native to South America. It is extracted from the leaves and then purified.

Is Reb A vegan?

Reb A is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Reb A gluten-free?

It does not contain gluten.

Is Reb A a major allergen?

Reb A is not derived from any of the 9 FDA major allergens.

What is Reb A used for?

Reb A is used as a high-intensity sweetener, providing sweetness with little to no calories.

Is Reb A safe?

Reb A is Generally Recognized As Safe (GRAS) by the FDA for use as a sweetener.

Why it's used

Reb A is used as a high-intensity sweetener, providing sweetness with little to no calories. It is often blended with other sweeteners to improve taste profile and is found in a wide variety of reduced-calorie and sugar-free products, including beverages, dairy alternatives, dressings, and desserts.

Health notes

Reb A is Generally Recognized As Safe (GRAS) by the FDA for use as a sweetener. International bodies like JECFA and EFSA have also evaluated steviol glycosides. While generally considered safe at typical consumption levels, some individuals may experience mild digestive upset. Research is ongoing regarding its long-term effects.

Allergen info

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

Foods that contain Reb A

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Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

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.