Optimum Nutrition Serious Mass

Serious Mass from Optimum Nutrition was designed to be the Ultimate in weight gainer formulas. This is achieved by packing every serve to the brim with all the nutrients required to build quality mass!

Each full serve of Serious Mass delivers more than 1250 nutrient rich calories, 50 grams of protein derived from high-quality Whey Protein Concentrate, Egg albumen, Calcium Caseinate and Sweet Dairy Whey. This is further enhanced with added Creatine, Glutamine, aminos, vitamins and minerals. The combination of all these ingredients gives you a calorie packed shake that provides you with all the building blocks to add quality weight to your frame.

Beyond The Basics and benefits of Serious Mass

• Adding Calories Has Never Been This Easy or Tasted So Good
• 1,250 CALORIES
• 50 g of BLENDED PROTEIN
• Over 250 g of Carbohydrates with NO ADDED SUGAR
• Enhanced with Creatine, Glutamine, and Glutamine Peptides
• 25 Vitamins and Essential Minerals