Let’s start with Proteins. The word protein is derived from the Greek word proteios, or primary. Protein is the most powerful component that makes up or bodies, except for water. Our bodies make protein, and they are called amino acids. These proteins make up our hair, muscles, nails, tendons, and ligaments. Proteins also function as enzymes hormones, and other cells, including our genes. Our bodies strive to make good use of protein. In just in a single day, almost a pound of our adult body’s protein will be broken down into amino acids and made into new proteins.