Yes, your body does need electrolytes (sodium, potassium, magnesium) to function. But you don’t need to get them from your water. You get them from food—that salty avocado toast, the banana you had for breakfast, the handful of almonds you crushed at 3 PM.
Your body’s natural water-balancing system is like a really good thermostat. It holds onto electrolytes when you’re low on them and flushes out excess when you’re high. Pure water just helps it do its job without getting in the way.
Distilled Water vs Purified Water | Culligan Quench
In fact, for most people, pure water is the best hydrator. It’s the zero-calorie, no-nonsense, always-available hero. Unless you’re running a marathon in the Sahara Desert, you don’t need a neon-colored sports drink. You need a glass of the good stuff.
When “Pure” Water Gets Tricky
There is one tiny, tiny edge case: if you only drink water that has been stripped of every single mineral (like distilled water) for months on end. But you’d have to be actively avoiding food or eating a bare-mineral diet. And, like, who does that?
Your tap water, even filtered water, still contains trace minerals. It’s not “pure” in the sterile lab sense. So unless you’re sipping from a chemistry beaker labeled “H₂O only,” relax. Your body is fine. (Please don't drink from a chemistry beaker. Those things have seen things.)
In short: the “pure water dehydrates you” myth is a beautiful misunderstanding—like the idea that cracking your knuckles gives you arthritis. It’s false, but it sounds cool at parties until someone fact-checks you.
