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For many aspiring to be bigger, a highly-active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. With Serious Mass™, you've not nothing to lose and lots to gain. We've consolidated 1,250 calories, 50 grams of protein, 254 grams of carbohydrates, 25 vitamins & min..

Optimum Nutrition Serious Mass  | High Protein Weight Gain Powder  Banana - 6 lbs  2.72 kgHigh Protein Weight Gain Powder50 g Protein253 g Carbs25 Vitamins & MineralsNaturally & Artificially FlavoredDietary Supplement1250 Calories True StrengthThe True Strength of Weight Gainers Serious weight gain requires serious calories.However, those who need ..

For Muscle Building & Weight Gain Goals1,250 Calories per Serving to Help Boost Calorie Intake ¹50 Grams of Protein per Serving to Help Build and Maintain Muscle ¹ ³252-254 Grams of Carbohydrates per Serving to Help Fuel Workouts ¹..