ABSTRACT
The word “vitamin” is a contraction of the term “vital amine.” Vitamins constitute a total of 24 organic compounds that have been characterized as dietary essential. Many vitamins function biochemically as precursors in the synthesis of’ coenzymes necessary in human metabolism. There are two major categories of vitamins:
1. The lipid-soluble vitamins include A, D, E, and K. In addition to common solubility, they are usually associated with the lipids of foods and are absorbed in the intestine with these dietary lipids.
