ON Serious Mass 12lb

Free ON Gainer Shaker

Every serve of Optimum Nutrition Serious Mass delivers over 1250 of nutrient loaded calories, that are blended with 50g of anabolic (muscle building) protein, from quality proteins such as ultra-filtered whey protein concentrate, calcium caseinate, and egg albumen.

Features:
Serious Weight Gain Protein Formula
1,250 calories per serve
50g Protein-High Protein
25 Vitamins & Minerals Creatine & Glutamine
250g of carbohydrates
No added Sugar
Muscle Building / Build Muscle
Strength Gains
Many athletes who are aiming to put on muscle size, tend to either have high metabolisms, weak appetites, or have on the run lifestyles, that make consuming sufficient calories through food alone, a challenge. Serious Mass provides 1250 calories per serve, which adds plenty of clean calories to a hard-gainers diet.

16 servings