Optimum Nutrition Gold Standard 100% Whey Protein, 10 LB, Extreme Milk ChocolateOptimum Nutrition Gold Standard 100% Whey Protein in Extreme Milk Chocolate flavor is a highquality protein supplement designed to support muscle building and recovery. This 10 LB container features whey protein isolate as its primary source, known for its purity and rapid absorption. Each serving delivers essential amino acids, including the three branchedchain amino acids (BCAAs): leucine, isoleucine, and valine, which are crucial for muscle repair