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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 needed to repair the damage to your muscle fibers, but it also is necessary in order to lengthen and expand the muscle fibers. That is why protein is so crucial to muscle growth, because, in essence, that expansion and lengthening of muscle fibers is the visible growth that you see.As you can see, protein is a vital nutrient for not only overall health, but also specifically for muscle building.ere are four reasons you need to be using protein and protein powders for muscle building: Fat and carbs are turned into triglycerides and glucose, which your body burns for energy when you run, lift weights, cycle, or walk to work.