Speaking of fluoride, here’s where it gets interesting. Babies don’t need extra fluoride until their teeth come in, and even then, it’s a dance. Too much can cause dental fluorosis (white spots on teeth), which is harmless but not a great look.
Should you panic? No. Most powdered formulas already contain minimal fluoride. So if you use tap water, you’re just adding a tiny extra bit—like putting a second pinch of salt in soup you didn’t need.
If you’re nervous, you can switch to low-fluoride bottled water. Look for labels that say “purified,” “distilled,” or “deionized.” Just avoid “spring water” unless you’re sure about its mineral content.