Getting on and off our list. Although many commonly consumed foods are rich in protein, they are also high in saturated fat and cholesterol. But most of the fat in soyfoods is polyunsaturated fat, which doesn't raise blood cholesterol levels. Soyfoods are also free of cholesterol and are rich in high-quality protein. They did so for good reason.
Protein plays varied and crucial roles in every cell of the body.
The enzymes that are central to every single biological reaction are proteins. Anti-bodies, many hormones, muscles and bones all contain protein. The Building Blocks of Protein Humans don't have a requirement for protein per se. The requirement is for amino acids, which are the building blocks of protein, and for the nitrogen they contain. A protein molecule consists of long twisted strands or chains of amino acids.