Vitamin B2 Foods Vitamin B2 can be derived from food. Some food sources include bread, milk, cooked beef, dark meat chicken, fish, pork, beef, spinach, and eggs. Vitamin B2 Deficiency Diseases Vitamin B2 deficiency is indicated by some signs and symptoms such as cheilosis, sore throat, angular stomatitis, itchy and red-eye, hyperemia and edema of the mouth and throat, skin disorders, hair loss, reproductive problem, degeneration of the liver and nervous system. It also impairs the metabolism of other nutrients. Vitamin B2 Benefits Vitamin B2 is a beneficial vitamin to the body. It plays a key role in the maintenance of the body’s energy supply, helps in the absorption of other nutrients, and prevention of the development of cataracts. B2 Tablet Vitamin B2 is known as Riboflavin. The tablet contains Riboflavin as its active ingredient. It is taken by mouth to prevent a low level of Riboflavin or to treat the symptoms of Riboflavin deficiency.