Here’s the kicker: ultra-pure water can actually make you feel worse. Some people report headaches, fatigue, or even constipation after switching to RO exclusively. That’s because your gut bacteria—your little microbial buddies—thrive on a bit of mineral diversity.
Remember that scene in The Simpsons where Homer drinks a “pure” water that removes all his memories? Yeah, not that dramatic. But it’s close: your body doesn’t want a blank slate. It wants complexity.
And here’s the part that makes me giggle: some RO systems actually waste more water than they produce. For every gallon of purified water, you might dump three to four gallons down the drain. So much for saving the planet, Dave.
Is Reverse Osmosis Water Good for You? RO Water Benefits - Basidewt
What The Science Says (And What It Doesn’t)
The World Health Organization has actually warned against drinking de-mineralized water long-term. They note that water with low total dissolved solids (TDS) can disrupt your electrolyte balance and even increase your risk of certain cancers. Scary, right?
But let’s not panic. Many RO systems now come with a remineralization filter that adds back crucial minerals like calcium and magnesium. If you buy one of those, you’re basically drinking fancy spring water without the pesticides.
The problem is that most people—like Dave—don’t bother with that extra step. They just want “pure” and assume their body will figure it out. Spoiler: your body is not a magical mineral bank.
