Vitamin B

Vitamins B are a group of water-soluble vitamins that play important roles in cell metabolism. Vitamins B were thought to be a single vitamin, Vitamin B. Further investigation showed that they are chemically distinct vitamins that often coexist in the same foods. In general, supplements containing all eight are referred to as a vitamin B complex . Individual supplements of vitamin B are known by the specific name of each vitamin:
   Vitamin B1 (thiamine)
   Vitamin B2 (riboflavin)
   Vitamin B3 (niacin or niacinamide)
   Vitamin B5 (pantothenic acid)
   Vitamin B6 (pyridoxine, pyridoxal or pyridoxamine, or pyridoxine hydrochloride)
   Vitamin B7 (biotin)
   Vitamin B9 (folic acid)
Vitamin B12 (cobalamin different; commonly cyanocobalamin in vitamin supplements)