Proteins are the building blocks of muscle, bones, skin and even the heart. To enable muscle growth, it is necessary for muscle protein synthesis to exceed muscle protein breakdown resulting in a positive muscle protein balance. Without this balance, and in the absence of proper nutrient intake, the body will remain in a catabolic state resulting in no muscle growth. To achieve muscle growth, an anabolic state is required, and protein metabolism can help you achieve that state. Protein metabolism is driven by Biological Values (BV), rate of absorption, and amino acid profile.