Vitamins

Vitamins (derived from an early term: "vital amines") are organic nutrients required in small quantities for a variety of biochemical functions.  As the vitamins generally cannot (or may not) be synthesized from other precursors within the body, they must be supplied via the diet.

• "Fat-soluble" vitamins:
  • Vitamin A  
  • Vitamin D
  • Vitamin E
  • Vitamin K
    

• "Water-soluble" vitamins:
  • Thiamine (vitamin B₁)
  • Riboflavin (vitamin B₂)
  • Niacin (nicotinic acid, nicotinamide; vitamin B₃)
  • Pantothenic acid (vitamin B₅)
  • Vitamin B₆ (pyridoxine, pyridoxal, pyridoxamine)
  • Biotin
  • Folic acid (folacin, pteroylglutamic acid)
  • Vitamin B₁₂ (cobalamin)
  • Ascorbic acid (vitamin C)
  • Choline

This page updated by G. R. Frank.