Optimum Nutrition Serious Mass, Vanilla, 6 LB OfferOptimum Nutrition Serious Mass, Vanilla Offer, 6 LB, is a dietary supplement designed to support healthy weight gain. It is formulated with a highcalorie content, providing 1250 calories per serving, and 1640 calories when mixed with lowfat milk. This supplement is ideal for individuals who struggle to gain weight through regular food intake alone. Each serving delivers 50 grams of protein, which aids in muscle growth and strength. Additionally, it