Nature's Best Perfect Isopure provides the ultimate in muscular nutrition with 50 grams of the purest whey protein isolate. So pure the protein dissolves clear. Contains only ion-exchance whey protein isolate! Isopure does not contain any of the lower quality ion exchange whey protein concentrate! All impurities have been removed to provide you with a great tasting, lactose free, fat free, glutamine enriched state of the art meal replacement! Contains only 1 gram of sugar and is instantized so it can be taken anywhere and mixed with a spoon. Furthermore, Isopure is rich in branched chain amino acids and glutamine.