Riboflavin, also known as vitamin B2, is a vitamin found in food and used as a dietary supplement.As a supplement it is used to prevent and treat riboflavin deficiency.
Riboflavin is an essential vitamin soluble in water. Milk and eggs are found to be its major sources. Riboflavin is usually bound to enzymes in all tissues. During riboflavin localization in plasma, it is bound to albumin and specific immunoglobulins.