A whey protein isolate is a dietary supplement and food ingredient created by separating components from whey. Whey is milk product of the cheess making process. Whey can be processed to yield whey protein in three forms: whey isolate, whey concentrate. The difference between the whey protein forms is the composition of the product, particularly the protein content. Whey isolates contain the higher percentage of pure protein and can be pure enough to be virtually lactose free, carbohydrate free, fat free, and cholesterol free. When it comes to building muscle, there are few foods or supplements that are more powerful than whey isolate protein powder