Optimum Nutrition Serious Mass 2.73kg is a high-calorie weight gainer engineered for serious athletes and hard gainers who struggle to pack on size. Each massive serving delivers 1,250 calories, 50g of protein, and 250g of carbohydrates to fuel muscle growth and support your bulking goals.

Key Features:

• 1,250 Calories Per Serving: Massive calorie boost for weight gain and muscle building
• 50g Protein: High-quality protein blend for muscle recovery and growth
• 250g Carbohydrates: Energy-dense carbs to fuel intense training and recovery
• 3g Creatine: Supports strength, power, and performance
• Versatile Usage: Mix with water or milk for a convenient post-workout shake

Perfect for hard gainers, athletes in mass-building phases, or anyone looking to increase their daily calorie intake and accelerate muscle development.