Vitamin B2 (Riboflavin)

Vitamin B2 (riboflavin) is a water-soluble B vitamin essential for various bodily functions including energy production and cell growth. Riboflavin is a micronutrient that is naturally present in some foods, added to some food products as a nutrient or a color and available as a dietary supplement.

Found In
  • Beverages
  • Breads
  • Cereals
  • Dairy products
  • Eggs
  • Green leafy vegetables
  • Meat
  • Mushrooms
  • Nuts
  • Seeds
  • Yeast
Also Known As
  • E101
  • Lactoflavin
  • Riboflavin
  • Riboflavine
The Beverage Bottom Line

Vitamin B2 (riboflavin) is authorized for use in the U.S., Europe and Canada.

This ingredient may have authorizations in countries not included on this site.


International Assessments and Authorizations


U.S. Food And Drug Administration

Safe for intended uses. (, )

In 2006, dietary reference intakes for riboflavin were reviewed by the National Academies of Sciences, Engineering and Medicine.

In 1983, affirmed riboflavin and riboflavin-5’-phosphate as for general use.

In 1979, health aspects of riboflavin and riboflavin-5’-phosphate as food ingredients were evaluated.

Learn more →

European Food Safety Authority

Safe for intended uses. Authorized for use in the EU (nutrients, additives).

In 2017, EFSA established dietary reference values for riboflavin.

In 2013, EFSA assessed the safety of riboflavin as a food additive.

In 2010, EFSA evaluated health claims related to riboflavin.

Learn more →

Joint FAO/WHO Expert Committee on Food Additives

Safe for intended uses.

Learn more →

Safe for intended uses. Vitamin B2 (riboflavin) is permitted for use as a supplemented ingredient or as a color.

In 2006, dietary reference intakes for riboflavin were reviewed by the National Academies of Sciences, Engineering and Medicine.

Learn more →

This page was last updated on 9/09/2025