Post-Workout Muscle Support & Recovery Each serving of the world’s best-selling whey protein powder provides 24 grams of high-quality whey protein primarily from Whey Protein Isolate, which has had excess carbohydrates, fat, and lactose ‘isolated’ out using sophisticated filtering technologies. The powder is also instantized for easy mixing using just a glass and spoon. With more than 20 different flavors – including naturally flavored options – there’s no doubt this is the Optimum Nutrition Gold Standard 100% Whey Protein.