Protein Power

VA high-protein diet has become nearly synonymous with muscle building. Walk into any gym or grocery store and one is likely to find an entire section dedicated to protein shakes and supplements, not to mention the array of recipes and cookbooks focused on high-protein meals and snacks. But how much protein does the human body actually need to build muscle? And does the source of the protein matter?

Proteins are broken down into their constituent amino acids in the process of digestion. These ami…