Optimum Nutrition Serious Mass

Ideal for lean people or those struggling to gain weight. Causes your muscles to enter a state of growth. Guarantees rapid weight gain. Contains a variety of growth ingredients. Causes your muscles to enter a growth state. Without creatine - 25 vitamins and minerals. If you're having trouble gaining weight, Serious Mass is an asset that will help you put on weight quickly and gain a few pounds of muscle. Each daily serving of Serious Mass provides important nutrients that can power your muscles during the building phase. This includes a higher amount of protein. Serious Mass with multiple sources of carbohydrates for energy, to trigger the recovery phase and anabolic (muscle building phase). It forces your body to get into the anabolic phase of building muscle mass and strength.