Out of the various food and dietary supplements for body building, it is said that the whey protein isolate is really the best one. It is obtained from the whey and is one of the major products derived from the whey. The isolate of whey protein is very rich in protein content; it is proved that the protein content is more than 98 % in the case of whey protein isolate. The whey protein isolate is the high density protein supplement which helps to increase your body metabolism and ultimately results in the body gaining when coupled with proper gym sessions.