Based on science, a little Flouride is beneficial.....and a lot will kill you. The same can be said for most biologically beneficial elements/substances. Too much H2O ingested WILL kill you. Without it you become a pile of powder and bones.
Most people realize flouride (Fl)is beneficial to our teeth, especially during formation. Fl is VERY beneficial to bones when present in small amounts (~1.PPM)especially when they are formed.The benefit? Increased resiliency. In a complete absence of Fl bones are brittle. With Fl @ formation of the bone they bend and flex to a more than just 'statistically significant' greater degree. Without (in the absence of all)Fl bones break rather than flex.
It probably doesn't directly affect most forum members since few are 'old timers', but very low dosage Fl helps reduce/slow osteoporosis.

It also has other uses and benefits, but minor by comparison.

Throwing some science your way.....Take it or leave it as you wish.

gimpy