Serious Mass by Optimum Nutrition Size:12LB - 5.45KG or your favorite smoothie

or your favorite smoothie

R1 Protein is protein with a capital-P

whey protein concentrate (WPC)

Take 1 capsule daily with food and drink plenty of water

Symptoms that indicate you may be deficient in magnesium include muscle cramps

Serious Mass by Optimum Nutrition Size:12LB - 5.45KG or your favorite smoothieOptimum Nutrition Serious Mass: the ULTIMATE in weight gain formulas. Optimum Nutrition Serious Mass supplies you with the tools you need to pack on the pounds and develop the physique you've always wanted. Super high in carbohydrates and Calories Optimum Nutrition Serious Mass is designed to help trainers with fast metabolisms obtain the calories they need to gain weight. 1,250 Calories per serve. 50g of blended protein. Over 250g of Carbohydrates