Riboflavin is a member of the water soluble B complex family of vitamins. It is essential for energy production in the cells in our bodies.
Riboflavin is safe to supplement in large amounts. It will turn urine a bright yellow.
Riboflavin deficiency occurs in combination with deficiencies of other water-soluble vitamins. Symptoms of riboflavin deficiency include sore throat, redness and swelling of the lining of the mouth and throat, cracks or sores on the outsides of the lips and at the corners of the mouth, inflammation and redness of the tongue, a moist, scaly skin inflammation, and a decreased number of red blood cells.
Sources include a wide variety of foods, like milk, meats and grains.
The Recommended Daily Allowance for adult males is 1.3mg and 1.1 mg for adult females.

