With 50 Grams of 100% Ion Exchange Whey Protein Isolate Aspartame FreeNature"s Best Perfect Isopure, 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, aspartame free, glutamine enriched state of the art meal replacement drink mix.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 caseinate or some other inferior protein.Furthermore, Isopure contains only 1g of sugar and is instantized so it can be taken anywhere and mixed with a spoon.Isopure"s Major Proteins Include:Beta-lactoglobulin 55 - 62% Alpha-lactalbumin 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-GlutamineAthletes 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.