Fluoride is naturally occurring and not added in many major distribution systems. Others do add it though. For example I live in a city of half million people. We do not add fluoride to the water but it is present at a measurable rate.

And a quick PSA for many There's NOT SNAKE VENOM IN THE WATER !

Fluoride is naturally occurring and not added in many major distribution systems. Others do add it though. For example I live in a city of half million people. We do not add fluoride to the water but it is present at a measurable rate.