Optimum nutritions 100 whey protein available at affordable supplements contains 22 grams of protein with only 2 3 grams of carbohydrates 15 grams of fat and minimal lactose the choice of brand is clear now to decide what flavour and size whey protein isolates are 90 pure protein by weight they are the purest and most expensive form of whey protein that exists thats why they are the first ingredients you read on the 100 whey gold standard label by using whey protein isolates as the