100% Whey Gold Standard 1 Lb by Optimum Nutrition is recognized as the best-selling whey protein. Its primary ingredient is whey protein isolate, helping to reduce excess carbohydrates and fats, making it perfect for athletes. Each serving delivers 24 g of protein, 5.5 g of BCAAs, and 11 g of essential amino acids from natural sources. This instant formula dissolves quickly in water, milk, or other beverages, allowing for a convenient post-workout shake. Available in over 20 flavors, each container holds 1 Lb of the product. Optimum Nutrition, operated by Glanbia Performance Nutrition Limited in Ireland, ensures the quality of this supplement, which should be stored in a cool, dry place.