Vitamins are chemical compounds necessary for growth, health, normal metabolism and physical well being. Some vitamins are essential parts of enzymes - the chemical molecules that catalyze or facilitate the completion of chemical reactions. Other vitamins form essential parts of hormones - the chemical substances that promote and protect body health and reproduction.
Vitamins come in two categories - fat-soluble and water-soluble. Fat soluble vitamins (A,D and E) are transported by the fats in your body. Excessive amounts of fat-soluble vitamins can can accumulate in toxic levels and store in such areas as your liver. Water soluble vitamins (B and C) can not be stored in the body and must be taken daily.
Since you can not get all of the necessary vitamins from food sources alone, it is recommended that you take a good multi vitamin daily. Top selling vitamins are Opti-Men, Animal Paks and Opti-Women.
