It's spelled fluoride. And as for it being "poison:" Any substance, in sufficient quantities, is poisonous.
Regards,
True - that's why the warning on the back of your toothpaste tube telling you that if you swallow more than a PEA-sized amount - call your poison control center immediately. And then they make bubble-gum flavor toothpaste for kids...
Regards...
Maybe it really is poison. Who puts fluoride in the water? Mainly cities, right? Where are the libs? Cities. So now we know what is causing liberalism.