Optimum Nutritions 100% Whey Gold Standard is the worlds best-selling whey protein. It provides 24 grams of whey protein to support muscle growth. After a workout, your body uses protein to help rebuild and grow muscle fibers. Each serving of 100% Whey Gold Standard contains: 24 grams of high-quality whey protein 5.5 grams of naturally occurring BCAAs 1.4g of fat 0.7g of sugars 1.3g of carbohydrates The high quality of ON is also evident in its solubility, as each serving dissolves easily in a shaker or with a spoon in a glass of water.