By: Dianna Yanchis, BSc (Nutrition)
Reviewed by Andrea Miller MHSc, RD
Protein is an essential nutrient that performs a variety of important functions in the body. This includes cell growth and repair, forming the structural component of tissues, producing hormones, building enzymes, maintaining fluid and electrolyte balance as well as pH balance, producing antibodies to protect against disease and use as an energy source. Protein can also act as building materials for bones, ligaments, tendons, muscles and organs.