Nature's Best - Isopure Perfect Zero Carb Cookies and Cream - 3 lbs. (1361 g) Nature's Best Isopure Zero Carb with 50 grams of Protein from 100 percent Whey Protein Isolate.Perfect Zero Carb Isopure contains 50 grams of 100 percent 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.Nature's Best set out to create a product that didn't hide anything from it's customers. Nature's best wanted you to know that you're purchasing the best product available on the market. Their protein source is clearly identified as 100 percent Whey Protein Isolate. They 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 why protein concentrate or sweet whey or some other inferior protein source.Furthermore, Isopure contains 0g 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 percent Alpha-Lactalbumin 19-22 percent Immunoglobulin 9-10 percent Bovine Serum Albumin 6-8 percent Lactoferrin .5-1 percentIn addition, Isopure is rich in branched chain amino acids and glutamine.Each Serving Of Isopure Contains: 3465mg of isoleucine 7865mg of leucine 3080mg of valine 4.6g 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.It's So Pure The Protein Dissolves ClearIn addition to dissolving clear, Isopure protein is also light and easy to drink. The protein used in Perfect Isopure doesn't have the properties typically associated with a milk protein. It doesn't look, smell or taste like milk.