Optimum Nutrition Serious Mass - HealthDesigns from grams to pounds formula Watch Video
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Description: http://goo.gl/dSt1sQnSERIOUS MASS is the ultimate weight gain formula.* With 1,250 calories per serving and 50 grams of protein for muscle recovery, this instantized powder makes a sizable post-workout and between meals shake.* SERIOUS MASS gives you the tools you need to pack on pounds and - when coupled with serious weight training - develop your physique to the fullest.*
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