Ingredient · E101

Vit B2

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add vitamin B2 to foods as a nutrient supplement, often to fortify products …

What is Vit B2?

Vitamin B2, also known as riboflavin, is a water-soluble vitamin that is essential for energy production, cell function, and metabolism. It is found naturally in foods like eggs, lean meats, and leafy green vegetables. It can also be produced synthetically for use as a food additive.

Is Vit B2 vegan?

Vit B2 is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Vit B2 gluten-free?

Riboflavin is not derived from any of the FDA's major allergens and does not contain gluten.

What is Vit B2 used for?

Manufacturers add vitamin B2 to foods as a nutrient supplement, often to fortify products like cereals, bread, and pasta.

Is Vit B2 safe?

Riboflavin is recognized as safe and effective by the FDA when used as a nutrient supplement.

Why it's used

Manufacturers add vitamin B2 to foods as a nutrient supplement, often to fortify products like cereals, bread, and pasta. It is also used as a yellow colorant in some foods. You can find it in snack bars, bread mixes, and vegetarian meat alternatives.

Health notes

Riboflavin is recognized as safe and effective by the FDA when used as a nutrient supplement. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated riboflavin and established guidelines for its use. While generally considered safe, very high doses can cause temporary bright yellowing of urine.

Allergen info

Riboflavin is not derived from any of the FDA's major allergens and does not contain gluten.

Foods that contain Vit B2

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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.