Ingredient · E101

Ribloflavin

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Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Riboflavin is often added to foods as a nutrient supplement to fortify them, helping …

What it is

Riboflavin, also known as Vitamin B2, is a water-soluble vitamin that occurs naturally in foods like eggs, meat, dairy, and green vegetables. It is also produced commercially through fermentation or chemical synthesis. Riboflavin plays a vital role in energy production, cell function, and metabolism.

Why it's used

Riboflavin is often added to foods as a nutrient supplement to fortify them, helping consumers meet their daily vitamin needs. It can also be used as a yellow colorant in various food products. You can find it in enriched breads, cereals, pasta, and some dairy products.

Health notes

Riboflavin is generally recognized as safe (GRAS) by the FDA when used as a nutrient or color additive. It is an essential nutrient, and deficiency can lead to various health issues, though this is rare in developed countries. International bodies like JECFA have evaluated riboflavin. High doses are typically excreted in urine and are not associated with significant toxicity.

Allergen info

Riboflavin is not a major allergen and is not derived from any of the nine FDA major allergens. It does not contain gluten.

Products containing Ribloflavin

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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.