I wouldnt go over 40-50g to be on the safe side. It has alot to do with your own body, genetics, and whatever supplements/aas is in your system. The exception would be right after your workout, i would definitely get at least 50g and an hour later get another 50-70g. Your body can assimilate more during this time. But, again, if you look on the ingredients list on the back of a RTD, it will say 50g=100%, which suggest your body can only assimilate 50g per sitting.