Comment by dcow

I’m actually now much less certain that fluoride is unequivocally safe and newly skeptical of anybody arguing that anybody else questioning it, including effects on the brain, is a whacko. Thanks to down-thread links to the meta analysis from this year by the national toxicology program, it is crystal clear that high levels of fluoride ARE linked to lower IQ. It begs the question about working to better understand the effects of lower levels. Absolutely nothing presented thus far draws the conclusion that low levels of fluoride are safe, full stop. Thank you for changing my mind and making me look deeper, fervent fluoride supporters.