description=When Mom told you to take your vitamins, she probably didn't realize they look like this. This is the crystal structure of vitamin B2, or riboflavin. The crystal is sensitive to ultraviolet light, so foods containing it should be protected from sunlight. Riboflavin is absorbed by the small intestine and stimulates energy production. Brewer's yeast provides a rich, natural source of the vitamin. ìÄ
