At what age does my baby need fluoride?
If you're breastfeeding, your baby is not likely to need fluoride during its first year, because breast milk will provide some. However, if you're bottle feeding, then from the newborn period you'll need to be mixing your water with some kind of fluoride source, and discussing it with your pediatrician. After six months, all babies probably need a little bit of fluoride. Once again, you can get that probably from your water supply, and if not, then talking to your pediatrician.