Optimum Nutrition Gold Standard

Whey protein isolates consist of 90 per cent pure protein by weight. They are the purest and most expensive form of whey protein available. That's why they are the first ingredient you see on the label of 100% Whey Gold Standard. By using whey protein isolates as the primary protein source, Optimum Nutrition has managed to pack 24 grams of the purest, muscle-building protein per serving, with much less fat, cholesterol, lactose and other substances you can do without. There is no question that this is the standard by which other whey proteins are measured.