Optimum Nutrition Serious Mass Weight Gainer Protein Powder 5.4kg

Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between-meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted.

Putting on size requires a balance of heavy training and quality nutrition. Because everyone's a little different, some have a harder time packing on muscle than others. Serious Mass is a high-protein formula that delivers calories that count during recovery. Each shake provides ample supplemental protein, carbs, vitamins, and minerals to build on the amount you're getting through a balanced diet of food. Use Serious Mass as your post-workout recovery shake and high-protein meal between meals.