NOW Foods - Whey Protein Isolate Strawberry - 1.8 lbs. NOW Foods Whey Protein Isolate is a high quality protein supplement that is both bioavailable and easily digested. Now Foods Whey protein contains a high concentration of Branched Chain Amino Acids (BCAA's), which are important for efficient muscle metabolism. These qualities make NOW Foods Whey Protein Isolate an ideal supplement for active individuals. Strawberry Flavor Voted 2005 and 2006 Whole Foods Magazine Best Sports Supplement Mixes Instantly Cross-Flow Microfiltered High in Branched Chain Amino Acids Strawberry All Natural - No Aspartame, No Sucralose, No Acesulfame-K A Dietary Supplement What is Whey Protein and how is it processed Whey is a natural byproduct from the cheese-making industry. It is the liquid that remains when the solids in milk are pressed together to form cheese. This liquid is then filtered and purified into a powder that is high in quality protein but very low in fat. Because of the nature of whey, the purification process is a low-heat, spray-dry method that does not use any solvents. Quite simply, Whey Protein builds lean body mass by helping to increase your body's production of muscle protein, which is especially important after intense workouts. Hence its classification as a sports supplement. It appears NOW has used three different types of Whey Protein. What is the difference NOW's three different types of Whey Protein are formulated to provide anyone, from the weekend warrior to the most serious athlete, with a whey that's perfect for their fitness level. NOW's Economy formula is predominantly whey concentrate, which has a slightly different nutrient profile than the isolate form (detailed below) and provides about 16-17 grams of protein per serving. It's ideal for the casual fitness enthusiast. NOW's premium quality blend contains a mixture of whey concentrates and whey isolates, with higher levels of whey isolate, and more protein per serving (20 grams).