Beef Protein Isolate: Beef has proven itself as an anabolic protein over centuries of use. Now MuscleMeds provides bodybuilders with a Beef Protein Isolate that spikes amino acid and insulin levels at speeds comparable with whey – resulting in high impact anabolic effects. MuscleMeds pure BPI is 350% more concentrated in amino acids than steak and more concentrated than whey, with no fat or cholesterol, and without gelatin or collagen. With CARNIVOR MASS, you get the mass building benefits of pure beef protein at the speed of whey – without the lactose, allergies and other issues potentially associated with the use of dairy products. To pack on slabs of mass, you need CARNIVOR MASS!