Why is protein good for you?

Protein is good for people because it is an essential nutrient that is a chief component of every cell. The body uses it to build and repair tissues and to make enzymes and hormones. It also creates bones, cartilage, muscles, skin and blood, in addition to hair and nails.

Protein accounts for 40 to 45 percent of a body's total makeup and is mostly stored as muscle. When physical activity increases, so does the need to consume more protein. It is found naturally in meat, eggs, fish, dairy products, beans and nuts. Manufactured sources of protein include protein powders, shakes and bars made from whey, hemp, soy and several other products.