Click here to view the amino acids Vitamins are necessary for normal metabolism, growth, and development of the body. Vitamins must be obtained from the diet because they are not made in the body normally. There are a couple of exceptions though. Vitamins A, D, and K are found in the body. Vitamin A is produce yb beta-caroteine, which is found in foods such as carrots, pumpkin, and sweet potatoes.
Vitamin D is produced when ultraviolet light from the sun hits the skin.
Vitamin K is produced by intestinal bacteria. Antioxidants are thought to play a key role in preventing chronic diseases. One of the minerals biggest function is to maintain water. Minerals are also essential components of respiratory pigments, enzymes, and enzyme systems. They regulate muscular and nervous tissue excitability, are essential for blood clotting, and normal heart rhythm.