- The ultimate in weight gain formulas
- Each great tasting chocolate flavour shake contains 1,250 calories per serving
- 50g of blended protein and 250g carbs per serving - with no added sugar
- Includes 25 vitamins and minerals, creatine, glutamine and MCT
Optimum Nutrition Serious Mass is the ULTIMATE weight gain formula. Each delicious chocolate flavoured shake delivers 1,250 calories - with no added sugar and less than 5g of fat per serving. This includes 250g of carbohydrates, and 50g of blended protein to support muscle growth.
Mix 2 scoops with water or milk in a shaker, and enjoy between meals, post-workout and/or before bed. Supercharge your Serious Mass shake by adding nuts, fresh or frozen fruits or other ingredients.