NOW&ampreg; Whey Protein is a delicious blend of three of the highest quality whey protein concentrates and isolates from around the world: Ultrafiltered, Microfiltered and Enzymatically Hydrolyzed (partially predigested). This blend of specially processed whey proteins is designed to maximize amino acid absorption and Biological Value (BV). In addition, extra L-Glutamine has been added (460 mg per serving) to this blend. Whey protein is considered to have the highest Biological Value of any protein source &ampndash; superior in essential amino acid content to beef, milk, casein or soy.