Optimum Nutrition Serious Mass 12 lbs Bag Weight Gainer FLAVOR:Strawberry Unlike other fat-burning supplements

Unlike other fat-burning supplements

NOW® Vitamin D3 softgels supply this key vitamin in a highly-absorbable liquid softgel form

Better lid design

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Optimum Nutrition Serious Mass 12 lbs Bag Weight Gainer FLAVOR:Strawberry Unlike other fat-burning supplementsSUPPORTS MUSCLE BUILDING & WEIGHT GAIN GOALS Optimum Nutrition Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving 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 youve always wanted. Optimum Nutrition