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Naturally Sweetened: Enjoy clean hydration with erythritol and thaumatin for a natural
FULL 30-DAY SUPPLY
Fat burn that is
boosting athletic performance and muscle building
Optimum Nutrition | Serious Mass Gainer 12Ib nosync Naturally Sweetened: Enjoy clean hydrationSerious Mass is the ultimate in weight gain formulas providing you with the tools you need to pack on the pounds and develop the physique you've always wanted. Each serving of Serious Mass contains 1250 calories derived primarily from protein sparing complex carbohydrates and a high quality protein blend consisting of Whey Protein Concentrate, Calcium Caseinate, and Egg albumen. Creatine Monohydrate, Glutamine, Choline, and Inositol have been added to
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