OPTIMUM NUTRITION ON Serious Mass 2.72kg

Serious Mass is the ultimate weight gain formula.* With 1,284 calories per serving and 50 grams of protein for muscle recovery, this instantized powder makes a sizable post-workout and between meals shake.* Serious Mass gives you the tools you need to pack on pounds and - when coupled with serious weight training - develop your physique to the fullest.*

BEYOND THE BASICS:

• Adding Calories Has Never Been This Easy or Tasted So Good
• 1,250 Calories
• 50 Grams of Blended Protein
• Over 254 Grams of Carbohydrates with No Added Sugar
• Enhanced with Creatine, Glutamine, and Glutamic Acid
• Vitamins and Essential Minerals