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0 reviewsOptimum Nutrition Serious Mass: the ULTIMATE in weight gain formulas. Serious Mass by Optimum Nutrition supplies 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 serious calories derived primarily from protein sparing complex Carbohydrates and a high quality protein blend consisting of Whey Protein Concentrate, Calcium Caseinate, and Egg albumen. Creating Monohydrate, glutamine, Choline and Inositol have been added to optimize each strength training workout while a complete vitamin and mineral profile insures your body gets the balanced nutrition it needs.
Compared to weight gainers using a lot of simple sugars such as dextrose which can be notoriously bad on the digestive system, Serious Mass uses complex carbohydrates, and provides fibre to further slow down the digestive process.
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