The Optimum Nutrition Gold Standard 100% Isolate undergoes sophisticated filtration processes to remove excess fat, cholesterol, and sugar. The manufacturer then brokes down the whey protein isolate into smaller chains of amino acids for easier digestion, granting you a fast-absorbing solution with over 80% pure protein, less than 1 gram of carbohydrates, and less than 1 gram of fat per serving. It’s the best alternative for weight loss since it only contains the highest quality whey protein.