ON Gold Standard 100% Isolate creation process starts by selecting only the highest quality whey protein which undergoes a series of a sophisticated filtration process to isolate out an excess of fat, cholesterol, and sugar. A portion of this Whey Protein Isolate is then hydrolyzed - broken down into smaller chains of amino acids - for easier digestion. The final product is a fast digesting complete protein containing no more than 1g of carbohydrates, 0.5g of fat and more than 80% of pure protein per serving.