Exercise, training and athletic competition result in the continual breakdown of muscle and bone tissue. Protein is necessary for the rebuilding of these tissues. A diet deficient in protein will lead to decreased muscle mass and increased risk of fractures. Whey protein provides an efficient source of amino acids crucial for tissue regeneration as well as a source of energy for high levels of physical activity. NutraSport Whey Protein powder provides 18 grams of protein per serving. Contains no artificial colors, flavorings, or preservatives. Manufactured from cows not treated with rBGH (recombinant bovine growth hormone).