Mutant MassMutant Mass Original Muscle Mass Gainer Mutant Mass is the original muscle mass gainer designed to support muscle growth and recovery. Each serving delivers 1,100 calories, combining proteins, carbohydrates, and healthy fats from whole food sources. 1,100 calories per serving 56g of protein and 192g of carbohydrates per serving Includes healthy fats from avocado, coconut oil, flaxseed, and pumpkin seed Supports muscle size and strength gains Available