Your cells don’t just want water; they want a balanced cocktail of sodium, potassium, and magnesium. Pure water is so “thirsty” for minerals that it can actually pull them out of your body as it passes through. This is called osmotic leaching—a fancy term for your water stealing your good stuff.
Imagine pouring a glass of distilled water into a jar of ocean water. The pure water will desperately try to dilute the salty ocean, and that’s what happens inside you. Over time, drinking only ultrapure water can lead to electrolyte depletion, which feels like brain fog, fatigue, and muscle cramps.
A 2019 study in the Journal of Nutritional Science even linked long-term distilled water consumption to lower bone density. That’s because your body starts pulling calcium from your skeleton to make up for the missing minerals. Your bones are not a water filter.