It is okay to drink more then 1 cup of coffee a day?

Coffee per day. Ordinarily it is okay to drink more than one cup of coffee per day unless you have some condition that call for coffee control.
More than 2 cups/day. In smaller amounts, caffeine has actually been considered to have some health benefits. Up to two cups of coffee daily, for example, would be a safe and potentially beneficial amount to drink. Any more than that may cause you some trouble - stomach upset, bone loss, etcetera.