Vitamins

A vitamin is a chemical compound that is needed in small amounts for the human body to work correctly. By convention the word vitamin does not include other essential nutrients, such as certain minerals, essential fatty acids and essential amino acids. Vitamins are considered essential nutrients—because acting in concert, they perform hundreds of roles in the body. They help shore up bones, heal wounds, and bolster your immune system. They also convert food into energy, and repair cellular damage. Thirteen vitamins are recognized at present.