Applied Nutrition Lean Mass Gainer is a product that supports weight gain and muscle building. It contains a powerful formula that combines fast and slow absorbing proteins to provide the body with the necessary proteins for a long time. Thus, it helps in promoting muscle growth and regeneration for a longer period. The product also contains a high amount of calories that help in gaining weight, building muscles, and making up for the body's energy needs. This means that it can be used as part of a diet specifically designed to gain weight and improve muscle composition. Features of Applied Nutrition Critical Mass Lean Mass Gainz It contains a high amount of protein. Low glycemic protein. It contains important fatty acids such as Omega-3 and Omega-6. High in calories to provide the energy needed for exercise. Weight gain and muscle. Fortified with glutamine, HMB, leucine, and creatine. Chromium fortified. Provides the energy needed for exercise.