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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 important to help the body build, repair and maintain body tissues. Protein helps make enzymes, hormones, and other body chemicals to regulate water balance and help make muscles contract. If your carbohydrate consumption is lacking, protein can provide energy.