Even if that is true, there's no reason to bathe in it, cook with it, water our lawns with it.

And now it's becoming clear that IQ is affected by fluroride https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3409983/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5285601/ https://www.reuters.com/world/us/epa-must-address-fluoridate...

So how about we keep it out of our drinking water. If you want to put fluoride on your teeth, use fluoridated toothpaste.