i am the study. 600g per day no prob. 100g shakes no prob. the guy doin the kilo a day is a good friend of mne and a top BB. 5'9" 275 or so at 5% bf. he's a monster. i talked to jay cutler one time and askred him how much he takes in a day and he said this. bulking 400g/d pro and 800g/d carbs. cutting 800g/d pro and 400g/d carbs.