Applied Nutrition Critical Mass 2.4kgHigh calorie protein & carbohydrate shake. Critical Mass delivers an impressive 566 kcal and 42 g of protein per 150g serving with a new reduced sugar formula. Lean mass gainer powder to drink before, during, or post workout to encourage muscle growth. With added HMB, Glutamine, Leucine, and Creatine Matrix. High mass gainer, ideal for those looking to gain weight. It provides calories and contributes to the growth and maintenance of muscle mass.