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Protein is an essential nutrient found in animal products, nuts, and beans. The name protein name comes from the Greek word protos, which means âfirst.â Your body uses proteins in your diet to build new cells, maintain tissues, and synthesize new proteins that make it possible for you to perform basic bodily functions.
Protein is used by the body for many different reasons, but one of the most important ones is its function as the building blocks for muscle. This fact leads many weightlifters and athletes eating huge amounts of it every day.