Plenty to think about, but fluoride isn't one of them. Yes, in massive quantities, its toxic, but you would have to eat the whole tube. In small quantities, say in toothpaste or water, its beneficial.

Some other things that are toxic when ingested inappropriately:

* Salt
* Vitamins
* Water
* Cheese doodles
* Snow Shovels


Moderation. And research. And moderation.