Vitamin B-2, also known as Riboflavin, is a member of the B-vitamin family. It occurs naturally in green vegetables, liver, kidneys, wheat germ, milk, eggs, cheese and fish. Riboflavin is an important enzyme co-factor necessary for energy production from carbohydrate, fat, and protein.* It is also needed for the regeneration of glutathione, which supports the body's natural defense mechanisms and...