Whey protein is the most efficient protein for the human body. Research has shown that out of all protein sources, whey protein is digested and absorbed better than any other protein. A reliable gauge for proper protein intake is approximately 1 gram per pound of body weight. Athletes and bodybuilders need even greater amounts of protein than non-athletes do. Strength training has been shown to decrease carbohydrate and fat storage which increases the protein requirement significantly.
Whey protein gives the muscles the extra fuel needed to repair, rebuild, grow and stay healthy.