Florida Surgeon General Dr. Joseph Ladapo has issued a warning that all cities and counties in Florida should discontinue the use of fluoride in their drinking water supplies. This comes on the heels of groundbreaking new research that proves that excessive fluoride lowers the IQ of children. A federal court ruling in September also found that current fluoridation levels in water pose an “unreasonable risk of harm to child IQ.” Hawaii is currently the only state that bans fluoride in its drinking water, but others may soon follow.

The city of Winter Haven, FL, announced on Friday that it was suspending fluoride in its drinking water. Dr. Ladapo was there for the news conference when he issued the new guidance from his office, encouraging all other Florida cities and counties to follow Winter Haven’s lead. The Florida Surgeon General called it “public health malpractice” to continue fluoridating water supplies, given the new scientific research.

Adding fluoride to drinking water was one of the biggest public health initiatives of the 20th century. The problem was that there was never any scientific evidence to back up the claims of fluoridation and no safety studies were done before cities started adding it to their drinking water. (See also: Every vaccine ever developed.)

The World Health Organization recommends that drinking water supplies should have no more than 1.5 mg/L of fluoride for safe levels. The United States and Canada have set the safe level at 0.7 mg/L. The problem is that people no longer get fluoride from drinking water systems alone. There’s fluoride in toothpaste, floss, mouthwash, and water-added foods and beverages that you buy off the store shelf. When those are all combined, the amount of fluoride is well in excess of the 1.5 mg/L that’s considered safe.

Doctors and scientists with the National Toxicology Program (NTP) conducted a systematic review of all the global scientific literature that has been conducted on the fluoridation of drinking water. The NTP uses four confidence levels to describe the outcome of research: High, moderate, low, and very low.

Based on their review of all the available evidence, the NTP announced in September that it had a “moderate” level of confidence that excess fluoride lowers a child’s IQ. And not just a little bit.

Communist China is not known for moderation in anything, so when the WHO recommended no more than 1.5 mg/L fluoride in drinking water, the CCP started pumping about 2.5 mg/L into its drinking water in rural parts of the country. IQ tests showed damning results after more than a decade. Students aged 8 to 13 who lived in non-fluoridated areas had a mean IQ score of 100.41, compared to students in rural, fluoridated areas who had a mean IQ score of 92.02.

Those 8 IQ points might not sound like a lot. But that’s the difference between living in a country that has a stable power grid versus living in some dump like California. Having a high national mean IQ means your society is able to sustain advanced systems like an electric grid, a municipal water system, and other important features of modern life.

The NTP found similar IQ drops in Canada, Pakistan, India, Mexico, and Iran. They didn’t check IQ levels in the United States. Maybe they forgot because they’ve been getting too much fluoride.

Incoming HHS Secretary Robert F. Kennedy, Jr. has vowed to remove fluoride from drinking water systems across the US. Once again, it turns out that the “conspiracy theorists” were right all along.