Nope, only true in extreme cases. I was curious about that years ago, and while it might make you need to urinate more frequently, it doesn't actually make you urinate more volume unless you consume way more caffeine than your body is used to. Now, alcohol on the other hand, anything over like 3-5% ABV does have a net dehydrating effect.

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[–] gid@piefed.blahaj.zone 3 points 3 hours ago

Thanks, I wasn't aware of that!

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