Perfect. Zero carb. With 50 grams of 100% Ion exchange whey protein isolate. Nature"s Best Perfect Zero Carb Isopure contains 50 grams of 100% ion exchange whey protein isolate. Any and all impurities typically found in most whey proteins have been removed to provide you with a great tasting, lactose free, glutamine enriched state of the art carbohydrate free protein supplement. Natures 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 or some of the inferior protein source. Furthermore, Isopure contains 0 g of sugar and is instantized so it can be taken anywhere and mixed with a spoon. Isopure"s Major Proteins Include: Beta-Iactoglobulin 55-62%, Alpha-Iactaalbumin 19-22%, Immunoglobulin 9-10%, Bovine Serum Albumin 6-8%, Lactoferrin .5-1%. In addition, Isopure is rich in branched chain amino acids and glutamine. Each Serving of Isopure Contains: 3465 mg of Isoleucine, 7865 mg of Leucine, 3080 mg of Valine, 4.6 g of L-Glutamine. Athletes tend to need more protein than sedentary individuals to achieve positive nitrogen balance. Most recommendations range from 1.5 -2.0 grams of protein per kilogram of body weight per day. Isopure will help you achieve the positive nitrogen state you are seeking. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)