Packed with 1,100+ calories and 56g of protein per serving, Mutant Mass 15lb is built for lifters who refuse to leave gains on the table. This heavyweight formula combines clean whole food carbohydrates—oats, barley, sweet potato—with premium fats from avocado, coconut, flaxseed, and pumpkin seeds to fuel serious muscle development. Whether you're a natural hard gainer or deep in a bulking cycle, Mutant Mass closes the nutrition gap when meals alone can't cut it. The complete amino acid profile supports recovery while the calorie-dense blend keeps you in the surplus needed for consistent growth and strength gains. Blend one serving with water or milk between meals or post-workout. New to mass gainers? Start smaller and scale up to match your daily calorie needs. Ideal for strength athletes, competitive lifters, and anyone serious about building mass. Contains milk, soy, oat, barley, and common allergens. Not intended to diagnose, treat, cure, or prevent disease. Results vary with diet, training, and individual response.