What are the different types of vitamins?
Vitamins are grouped as water-soluble and fat-soluble. The water-soluble vitamins include vitamin C and the B vitamins. The fat-soluble vitamins are vitamins A, D, E, and K. Water-soluble and fat-soluble vitamins differ in how easily they dissolve in water. This mainly affects how the different types of vitamins are absorbed and carried in the body. Most vitamins have both a chemical name and a letter name.