Here, you can request a copy of the source of your claims :)

https://soilandhealth.org/copyrighted-book/the-truth-about-water-fluoridation-second-edition/

Once you get one, please show me the part that supports your claim.
Or, just retract your old false claim and have some merit and reputability. It will help support your employer that you keep mentioning by giving your organization credibility.

Cheers