

https://www.rd.com/article/is-coffee-a-diuretic/
A lot hinges on the definition of diuretic. Does it mean, “makes you pee more often/more volume?” (In which case water is a diuretic) or does it mean it dehydrates you? (In which case water is not a diuretic).
That is my understanding of it anyway.







I don’t agree with your characterization of the discussion. My understanding was that caffeine the drug irritates the badder and causes you to pee, but doesn’t actually dehydrate you.