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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 an essential nutrient in any healthy diet. Proteins are used to repair the body. They are not used for energy unless there are not enough carbohydrates and fats present.However, many Americans eat more protein than they need. People who have kidney problems may be advised to limit the amount of protein they eat.rotein is one the three macronutrients: carbs, proteins, and fats which yield energy for the body. Proteins yield 4 calories per gram and is mainly used in rebuilding your bodies daily breakdown from stress applied on it.