Serious Mass by Optimum Nutrition is a high-calorie weight gainer designed for individuals looking to gain size, build muscle, and boost caloric intake. It's ideal for hard gainers and athletes during bulking phases.

• ✅ 1,250 Calories per Serving

• ✅ 50g Protein

• ✅ 252g Carbohydrates (No added sugar)

• ✅ With Added Vitamins & Minerals

• ✅ Supports Muscle Building & Weight Gain Goals

• ✅ Rich Chocolate Flavor

Flavor: Chocolate
Net Weight: 1kg
Servings: 29
Form: Powder
Goal: Mass gain, muscle building, calorie surplus