Optimum Nutrition (ON) Gold Standard 100% Isolate 1.6 lb, 744 g (Chocolate Bliss), for Muscle Support & Recovery, Vegetarian - 100% Protein from Whey Isolate To create GOLD STANDARD ISOLATE, we start by selecting only the highest quality whey protein which undergoes a series of sophisticated filtration processes to ‘isolate’ out excess fat, cholesterol, and sugar. A portion of this Whey Protein Isolate is then hydrolyzed – broken down into smaller chains of amino acids. The final product is a fast-digesting complete protein containing no more than 1 gram of carbohydrates, less than a gram of fat, and more than 80% pure protein per serving to support your muscle building, performance, and fitness goals.