Optimum Nutrition Serious Mass 6 lbs Weight Gainer FLAVOR:Strawberry and Valine) in each scoop

and Valine) in each scoop

or maintaining

and does not result in bloating commonly associated with whey protein

to ensure the highest product quality

Beta-alanine may cause a tingling sensation on the skin

Optimum Nutrition Serious Mass 6 lbs Weight Gainer FLAVOR:Strawberry and Valine) in each scoopSUPPORTS MUSCLE BUILDING & WEIGHT GAIN GOALS Optimum Nutrition Serious Mass is the ultimate muscle building and weight gain formula. With 1,250 calories per 2 scoop serving and 50 grams of protein to support muscle recovery, this 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 support your weight gains goals. High Calorie Formula Supports Muscle Building and