What does a protein do?

Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body’s tissues and organs. read more

Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood. Along with fat and carbohydrates, protein is a "macronutrient," meaning that the body needs relatively large amounts of it. read more

In terms of the overall health and function of the human body, protein is essential for building and repairing things. Your organs, muscles, skin, hair, nails, bones and certain hormones are all made up of some amount of protein. read more