Protein, a nutrient in food, is needed by the body for processes such as: growth and repair of cells; making enzymes and hormones; muscle function; transmitting nerve impulses; and protecting the immune system. Some of these terms may seem like science jargon but simply put, protein is an essential nutrient as it has several important functions in keeping us in good health. Some of the sources of protein foods include fish, seafood, chicken, red meat, eggs, nuts, seeds, soy,