the belief that coffe is a diuretic has been thrown out. It was a flawed 1950's study that came up with that notion. they have just redone the study and found out is no more diuretic than green tea or water.

yes it does make you go pee, but so does water. it does not make you eliminate more fluids than you take in, that is why is not a diuretic. furthermore, they have found out it destroys cancer cell in the liver in lab rats ( more studies to follow).

on the down side, it is an irritant, so if you suffer from IBS, Heartburn , acid relex or something like that you should stay away from it.


also, the airplane water used for making coffe is full of bacteria... but is ok to drink it from a reputable coffe shop or make your own with bottle/filter water if you carry one of those plastic french press from REI.