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Old 08-13-2019, 11:11 AM
DrDeth is offline
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Join Date: Mar 2001
Location: San Jose
Posts: 42,249
Originally Posted by Broomstick View Post
Normal strength soda, coffee, and tea and not "net negative hydration". They aren't as hydrating as, say, plain water, but you can live indefinitely on any of them. There may be issues with added items like sweeteners, cream, etc. due to calories or sugar content, but all of them provide sufficient hydration. Your body adjusts to the slight diuretic effect and overcomes it.

Really concentrated sources of caffeine like "shot" energy drinks? I don't know, never looked into that myself.
Right. Someone said that espresso shots are negative hydration, and I can accept that, but plain old coffee certainly isnt.