they haven't though. feel free to post a paper showing that fluoride ingestion is good for you. there's no dispute that fluoride contact on the teeth is good.

they haven't though. feel free to post a paper showing that fluoride ingestion is good for you. there's no dispute that fluoride contact on the teeth is good. there are plenty of papers showing that *ingestion* may be bad for you and results in lower IQ. feel free to research. https://ntp.niehs.nih.gov/research/assessments/noncancer/completed/fluoride https://ntp.niehs.nih.gov/research/assessments/noncancer/com...