Coffee does not dehydrate you the way everyone says — when 50 habitual drinkers spent three days on four mugs a day and three days on water, their total body water came out the same

Coffee does not dehydrate you the way everyone says — when 50 habitual drinkers spent three days on four mugs a day and three days on water, their total body water came out the same

You have probably heard the rule: for every cup of coffee, drink a glass of water, because the coffee is pulling fluid straight back out of you. The idea is that caffeine makes you pee more, so a coffee habit leaves you short on fluid. It sounds mechanical enough to be true. A controlled trial says it mostly isn’t. A quick note on what this is: we are not doctors or physiologists, and this is a piece of reading and reflection on the research, no…