It is involved in many processes in the body and is necessary for normal cell growth and function. It can be found in certain foods such as milk, meat, eggs, nuts, enriched flour, and green vegetables. Riboflavin is frequently used in combination with other B vitamins in vitamin B complex products. Some people take riboflavin by mouth to prevent low levels of riboflavin (riboflavin deficiency) in the body, for various types of cancer, and for migraine headaches. It is also taken by mouth for acne, muscle cramps, burning feet syndrome, carpal tunnel syndrome, and blood disorders such as congenital methemoglobinemia and red blood cell aplasia. Some people use riboflavin for eye conditions including eye fatigue, cataracts, and glaucoma.
Some people also take riboflavin by mouth to maintain healthy hair, skin, and nails, to slow aging, for canker sores, multiple sclerosis, memory loss including Alzheimer's disease, high blood pressure, burns, liver disease, and sickle cell anemia.