Weider nutrition mega mass 4000 vanilla 7000g the ultimate mass monster mega mass 4000 is the high calorie sensation that can help even the hardest of hardgainers pack on size faster than ever when made as directed each muscle gorging shake conatins a whopping 800 calories with 49g protein and 130g carbs which can help everyone from the novices to the pros get the absolute most out of their training can help everyone from the novices to the pros get the absolute most out of their training