Protein

Protein is one of the three types of nutrients used as energy sources by the body, the other two being carbohydrate and fat. Protein is a large molecule composed of one or more chains of amino acids in a specific order.

Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs. Each protein has unique functions. Proteins are essential components of muscles, skin, bones and the body as a whole.