Put simply, Whey Protein is derived from milk and is considered the "Gold Standard" of protein powders. Whey protein sets the standard due to its duality. It delivers the body a complex protein combination comprised of numerous protein components, while simultaneously being extremely low in cholesterol and fat, relative to other protein sources.
Additionally, of the two proteins derived from cows' milk (the other is casein), whey protein is the most soluble. This means it is absorbed into the body more quickly and efficiently than casein. Whey Protein is a rich source of essential amino acids, the building blocks of muscles and bones. "Essential" refers to the fact that these amino acids cannot be fabricated by the body and must come from our diets in the form of high quality protein sources. When a protein source contains all the essential amino acids it is called a complete protein. Whey Protein is naturally Complete!