Guaranteed real protein. The Whey Protein in this product: Uses no individual amino acids, fillers or extenders to overstate the labeled protein content; Is naturally packed with Branched Chain Amino Acids (BCAAs) to promote lean muscle growth and recovery. Twinlab Whey Fuel is the perfect protein blend to add when your goal is to gain lean muscle mass or bulk up. Using a blend of quality protein sources, this advanced formula gives you maximum bang for the buck and has an unbelievable thick, rich taste. Superior taste. Superior performance. 21g protein per serving from whey and milk sources. Instantized for easy, no-blender-required mixing. Incredibly thick, rich taste, even in water. Enzyme-assisted formula to promote comfortable digestion. Cross flow, ultra filtered Whey Isolate. Is fast absorbing to speed amino acid delivery to muscles immediately after exercise.