this post was submitted on 21 May 2026
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That's really not the case. Most tap water and bottled water have some salt and the amount varies widely by brand/location.
Guess which water is used for the coffee buddy xD
Caffeine in the coffee is a diuretic though. It'll make you lose more water through urination than if you drank the equivalent volume in just water.
This doesn't actually seem to be completely true. The diuretic effect isn't enough to really impact the benefits if drinking a 99% water solution.
Ah thank you, I didn't know that!
Although caffeine is a diuretic, coffee is net hydrating.
https://health.clevelandclinic.org/coffee-dehydration
Sure, but drinking any amount of caffeine will result in more water being excreted than if you have no caffeine, right?
And no water at all is worse than water from coffee. Do you know what a net positive is?
Yes. I don't need the snark thank you ❤️
Just making sure this isn't up for debate that coffee is better than nothing at all. 🙂↕️
I never said it wasn't
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.
Thanks, I wasn't aware of that!
Not enough to offset the amount of water you take, look it up if you want. It does make you empty your bladder and that might be more water than what you just drank, but then your bladder takes a while to fill again. It doesn't really make you generate enough urine to offset what you drank at all.
"no salt" as in neglible. Of course it isn't distilled water. And that's also what's in the coffee.