Optimum Nutrition Serious Mass 5440g

weight: 5440g

Optimum Nutrition Serious Mass, a weight gainer powder in a 5440 g tub, supports muscle growth and weight gain. Each serving provides over 1,200 calories, 50 g of blended protein, and more than 250 g of carbohydrates. It is enriched with vitamins and minerals, including Vitamin C, for daily nutritional support alongside training.