Optimum Nutrition Gold Standard 100% Whey Protein Powder helps build and maintain muscle mass when taken regularly and combined with strength training exercise. Made with whey protein isolate as the primary ingredient, this protein supplement powder ensures that you're getting high quality protein with every serving. The hydrolyzed whey protein powder isolate creates a post-workout drink mix that supports muscle recovery. Each serving of this delicious flavored protein powder provides 24 grams of all whey protein, along with 5.5 grams of branch-chained essential amino acids (BCAAs) to support after workout muscle recovery. Optimum Nutrition protein powder mixes easily using a shaker cup or blended in a smoothie. Gold Standard 100% Whey has fueled billions of workout recoveries worldwide.