Building muscle mass is not a simple task. In order to develop significant size, you need to consume more calories than you burn, which can be challenging for those who are high performance athletes, bodybuilders or even regular fitness participants. The key is to retain a high level of protein, carbohydrates and fats in your diet. Adding weight-gain supplements allow you to do just that. Gaspari nutrition's advanced weight gainer; real mass has 1,000 calories with 47 grams of protein, creatine, bcaas and highly branched cyclic dextrin (as in glycofuse). This versatile supplement can be consumed pre-workout, post-workout or as a daily meal replacement. Your choice. When it comes to putting on quality mass effectively and fast, real mass is the premium weight gainer solution. Real mass. Maximum results. Maximum mass.