50 Grams of the Purest Whey Protein Isolate Per Serving!Nature's Best set out to create a product that didn't hide anything from its customers. We wanted you to know that you're purchasing the best product available on the market. Our protein source is clearly identified as 100% pure ion exchange whey protein isolate. We didn't try to confuse you by listing a protein blend that doesn't tell you how much of the product is superior whey protein isolate and how much is whey protein concentrate or sweet whey or some other inferior protein source. In addition, ISOPURE is rich in branched chain amino acids and glutamine. Athletes tend to need more protein than sedentary individuals to achieve positive nitrogen balance. Most recommendations range from 1.5 to 2.0 grams of protein per kilogram of body weight per day. Isopure will help you achieve the postive nitrogen state you are seeking.Nature's Best Perfect Isopure, is the first and only product of its kind to contain 50 grams of 100% Pure Ion Exchange Whey Protein Isolate. All impurities have been removed to provide you with a great tasting, lactose free, fat free, glutamine-enriched state-of-the-art meal replacement drink mix. 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! Contains only 1 gram of sugar and is instantized so it can be taken anywhere and mixed with a spoon.