Eight of nine high-quality studies examining other cognitive or neurodevelopmental outcomes reported associations with estimated fluoride exposure. Seventy-two studies assessed the association between fluoride exposure and IQ in children. Nineteen of those studies were considered to be high quality; of these, 18 reported an inverse association between estimated fluoride exposure and IQ in children.
It wasn't just low IQ but behavioral problems and this with just an increase of 0.68 https://keck.usc.edu/news/fluoride-exposure-during-pregnancy-linked-to-increased-risk-of-childhood-neurobehavioral-problems-study-finds/
Eight of nine high-quality studies examining other cognitive or neurodevelopmental outcomes reported associations with estimated fluoride exposure. Seventy-two studies assessed the association between fluoride exposure and IQ in children. Nineteen of those studies were considered to be high quality; of these, 18 reported an inverse association between estimated fluoride exposure and IQ in children.
https://ntp.niehs.nih.gov/publications/monographs/mgraph08
IMO, this response to the "fear porn" against fluoridation, RFK, Jr. and the Federal Judge decision against the EPA that I have read. Thank you.