Optimum Nutrition Gold Standard 100% Isolate contains high-quality whey protein with 25g of protein per serving, 1g of carbs, less than 1g of fat, and over 80% pure protein, featuring hydrolyzed and ultra-filtered isolate for fast digestion and optimum performance. With 5.5g BCAAs, 4.3g glutamine & glutamic acid, and 11.4g essential amino acids, it delivers a delicious and efficient boost to your fitness goals.