Serious Mass -VanillaWHAT IS IT FOR? Bulking periods and athletes with problems gaining muscle mass. PRODUCT DESCRIPTION 252 gr. of carbohydrates per serving. 50 gr. protein. Vitamins and minerals, creatine and glutamine. It combines the best carbohydrates both fast and slow absorption. Muscle mass and not fat. Serious MassfromOptimum Nutrition is a weight gainer that provides an extra energy per very high dose, we can say that it is one of the weight gainers that has
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