"It plays a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins. Milk, cheese, leaf vegetables, liver, kidneys, legumes, yeast, mushrooms, and almonds are good sources of vitamin B2."
"Deficiency of riboflavin is not common in the United States because this vitamin is plentiful in the food supply. Symptoms of significant deficiency syndromes include anemia, sore throat, swelling of mucous membranes, mouth or lip sores, anemia, and skin disorders. Because riboflavin is a water-soluble vitamin, leftover amounts leave the body through the urine. There is no known poisoning from riboflavin. "
"In the body, riboflavin is primarily found as an integral component of the coenzymes, flavin adenine dinucleotide (FAD) and flavin mononucleotide (FMN)"