How does coffee remove water from our bodies?
You can check the answer of the people under the question at Quora “does coffee cause water retention“
How does coffee remove water from our bodies?
You can check the answer of the people under the question at Quora “does coffee cause water retention“
Short version: caffeine is diuretic (makes you want to urinate) so I guess what this people mean is that this effect will make you urinate more than the cup of water you drank in the coffee.
Actually that is not strictly true, only a small fraction of the water you take in with coffee or tea is lost to extra urine. Moderate drinking of coffee or tea generally has no effect on your hydration.
Some of the flavour chemicals in coffee are what are known as diuretics and they have the effect of increasing production of urine by the kidneys.
https://en.m.wikipedia.org/wiki/Diuretic
http://www.abc.net.au/health/talkinghealth/factbuster/stories/2014/02/27/3951831.htm
It’s a common misconception that drinking coffee will make you dehydrated.
Yes, caffeine is a mild diuretic (will make you pee a little more), but you could substitute all your other drinks with coffee and not become dehydrated. The diuretic effect of caffeine diminishes the more often you drink it too, so after a few weeks of hardcore coffee binging you won’t have much of an effect left from it.