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Massive weight gain requires massive calories, but people who want to gain weight often have trouble getting enough calories. With sirius mass, you will gain a lot and will not lose anything, as the company (optimum nutrition) has enhanced in every dose "2 scoops":
- 1250 calories.
- 53 grams of protein.
- 254 grams of carbohydrates.
- 25 grams of vitamins and minerals, glutamine and creatine.
- Mixing the product with milk instead of water enables you to get more than 1650 calories.