Optimum Nutrition (ON) Serious Mass High Protein and High Calorie Gainer – 3 lbs, 1.36 kg(Chocolate)


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Special IngredientsCreatine, Glutamine
Item FormPowder
Dosage FormPowder


Serious Mass is the ultimate in weight gain formulas. With approx 1260 calories* per serving (Varies flavour wise) and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted. Made With Creatine Monohydrate

Who Needs Serious Mass: People with very active metabolism that struggle to gain weight; Athletes or anyone who has extremely high energy needs that can-not be met only with food.
What’s in Serious Mass: 1200+ Calories, 50 Grams of high quality Protein and over 250 Grams of Carbohydrates per Serving with 23+ Vitamins & Minerals, Creatine & Glutamine.