The days of loading your body with empty fat storing calories are over. Calories don't stimulate muscle growth - anabolism does. Welcome to a new era in mass building supplementation with CARNIVOR MASS, the fast, clean and highly anabolic mass gainer. High-speed macronutrient delivery with near-perfect insulin optimization setsCARNIVOR MASS apart from all others. As the pros know, fast proteins combined with elevated insulin equals explosive muscle anabolism (growth). This is finally possible with MuscleMeds world famous Beef Protein Isolate (BPI) acting in combination with iSpike, a dual insulin release/insulin signal amplifying technology not found in any other supplement made today. Beef Protein Isolate: Beef has proven itself as a favorite anabolic protein source for many champion bodybuilders. MuscleMeds advanced hydrolyzed Beef Protein Isolate is capable of delivering rapid absorption of high concentrations of amino acids fast. CARNIVOR MASS provides the mass building benefits of beef "at the speed of whey," without the lactose, allergies, fat, cholesterol and other problems associated with dairy products. MuscleMeds BPI is 350% more concentrated in amino acids than steak and more concentrated than whey. And it's enhanced with 5 grams of creatine and additional BCAAs for even greater anabolic power.