Protein is the foundation of a good diet and is made up of amino acids.
Dietary sources of protein are either complete or incomplete protein . Complete proteins contain all the essential amino acids our bodies cannot make and are therefore vital in our diets in small amounts. By contrast, incomplete proteins, which come from mainly plant sources, can be combined to make a complete protein. Protein is vital to maintaining immune function, producing hormones and enzymes, healing tissue, and have a role in athletic performance as a component of hemoglobin and myoglobin. These tissues are involved in oxygen transport to muscles.