Proteins are the buildings blocks of life. The body needs protein to repair and maintain itself.
Every cell in the human body contains protein. You need protein in your diet to help your body repair cells and make new ones.
When proteins are digested, amino acids are left. Amino acids need to be eaten in large amounts (20-30g/meal) for optimal health. There are three groups of amino acids: Essential Amino Acids cannot be made by the body and must be supplied by food; Nonessential Amino Acids are made by the body from essential amino acids or the normal breakdown of proteins; and Conditional Amino Acids are usually nonessential, except in times of illness and stress.
It is important to eat all different proteins to receive a complete mix of amino acids in the body.