It Is Dehydrating
Beverages that contain caffeine are often believed to have a dehydrating effect, but this is not entirely true. Despite popular belief, caffeine does not cause dehydration. Instead, it increases urination through its diuretic effect. Lawrence Armstrong, a professor of kinesiology at the University of Connecticut, conducted a study that put this myth to rest once and for all. He found that hydration levels between coffee drinkers and nondrinkers were remarkably similar. The water in coffee and tea balances the dehydrating effects of caffeine adequately, although the best way to stay hydrated is to drink water regularly. A daily cup of coffee or an energy drink will do little to negatively affect the body’s hydration levels.