B7
Vitamin B7 (C10H16N2O3S; aka biotin) is necessary for metabolism of proteins and fats, and cell growth. B7 deficiency is rare, as gut flora produce biotin. Soybeans, black-eyed peas, rice, barley, oats, egg yolk, mushrooms, peanuts, walnuts, pecans, and almonds provide a biotin bounty.
