Optimum Nutrition’s Gold Standard 100% Whey is the world’s best-selling whey protein powder for a reason. It delivers 24g of high-quality whey protein to support muscle growth and repair after training. This formula uses pure whey protein isolate as its main ingredient, along with ultra-filtered whey protein concentrate, to provide a superior product that’s low in sugar and fat.

• 24g of High-Quality Protein: Helps to build and maintain muscle mass, making it perfect for post-workout recovery.
• 5.5g of Naturally Occurring BCAAs: Provides essential branched-chain amino acids to support endurance and recovery.
• Whey Protein Isolate Main Ingredient: A high-purity protein source that is fast-digesting to kickstart muscle repair.
• Informed-Sport Tested: Trusted by athletes worldwide, this product is regularly tested for banned substances.