Optimum Nutrition Serious Mass

If you struggle to eat enough to put on size, Optimum Nutrition Serious Mass does a lot of the heavy lifting for you. One full serving delivers up to 1,260 calories, 50 g of protein and up to 252 g of carbohydrates, so a single shake can cover a big part of a bulking day. Built for hard-gainers Up to 1,260 calories per serving (per Optimum Nutrition) 50 g protein, mainly from whey protein concentrate Up to 252 g carbohydrates to help fuel hard training Sizes: 6 lb and 12 lb bags Flavour: Chocolate Tips for using it Mix with water or milk following the label. The full serving is large, so many people split it into two smaller shakes, one after training and one between meals. Blending with a banana or oats adds even more calories if you need them. Good to know Contains milk. Nutrition values can vary by flavour and batch, so check the label on your bag for current ingredients and allergens. Consult a health care practitioner before use if you are pregnant, breastfeeding, have a medical condition or take medication.