Optimum Nutrition, Serious Mass™, Chocolate, 6 Lb (2.72 Kg)

About this item

• High-Calorie Weight Gainer – Designed for athletes and hard gainers who want to increase size and strength, Serious Mass delivers a powerful 1,250 calories per serving to support muscle growth.

• Quality Protein Blend – Contains 50g of protein from premium sources like whey protein concentrate, calcium caseinate, and egg albumin to help build and repair muscle tissue.

• Loaded with Nutrients – Enriched with over 25 essential vitamins and minerals, plus creatine, glutamine, and glutamic acid to boost energy, recovery, and performance.

• Fuel for Intense Training – Helps replenish glycogen stores with 250g of carbohydrates per serving, supporting recovery and muscle fullness.

• Delicious Chocolate Flavor – Smooth, rich taste that mixes easily with water or milk — perfect for shakes or smoothies.

• Post-Workout or Between Meals – Ideal for use after workouts or between meals to meet your calorie and protein goals.