Made with 100% PURE WHEY PROTEIN ISOLATE as the sole protein source, ISO LeanPro contains ZERO carbs, sugar, lactose and gluten-- no junk, fillers, or cheap blends. ISO LeanPro is not a blend containing whey protein concentrate, peptides, or other proteins. You get only 100% pure whey protein isolate as the source of protein. ISO LeanPro is sugar-free, and carb-free, so it's perfect for dieting. ISO LeanPro is lactose-free, so there is no bloating, gas, or indigestion associated with cheap proteins. ISO LeanPro is gluten-free, perfect for individuals who must avoid gluten because they suffer from gluten sensitivities. ISO LeanPro is perfect for athletes, bodybuilders, and fitness enthusiasts who demand the purest, highest quality protein available on the market. ISO LeanPro has a BV of 159, making it more bio-available than any other protein source. The most accurate way of testing the bioavailability of proteins is with the BV (Biological Value) method which measures actual nitrogen retention in humans. ISO LeanPro 100% Whey Protein Isolate is an excellent source of all the essential amino acids and is extremely rich in the branched chain amino acids (BCAAs), leucine, isoleucine, and valine. Branched chain amino acids make up one-third of muscle protein and are important to athletes because training increases the body's demand for them. An adequate supply of BCAAs in the blood is insurance against loss of muscle size and strength. ISO LeanPro is also high in glutamine, which accounts for approximately 60% of all free amino acids in the body.