The effects of vitamin B2: 1, can make the skin and mucous membranes to maintain the normal state and function, because vitamin B2 can promote the normal growth and development of mucous membranes and skin, if deficient will occur lip inflammation, stomatitis, tongue inflammation and dermatitis. 2, involved in the metabolism of niacin and vitamin B6 in the body, vitamin B2 has an important role in the normal absorption metabolism and utilization of other nutrients. 3, can promote The absorption of iron in the body, if deficient then the risk of iron deficiency anemia will increase.