
The American Dental Association (ADA) released a statement in April 2025, saying that the ADA “believes that good oral health depends on proper diet, nutrition, oral hygiene, and optimally fluoridated water. Eighty years of community water fluoridation at optimal levels has proven to be safe and effective at reducing tooth decay to improve oral health.”
And not all European countries have banned fluoride in their drinking water. In May 2025, the BBC reported that some areas have naturally occurring fluoride in their water, while others choose to fluoridate their milk, salt, or bottled water.
In addition, the National Toxicology Program’s study that the secretary cited specifically says that “lower IQ in children” can occur with the consumption of water containing “more than 1.5 milligrams of fluoride per liter,” which is twice the CDC-recommended saturation of 0.7 milligrams per liter. They added directly, “It is important to note that there were insufficient data to determine if the low fluoride level of 0.7 mg/L currently recommended for U.S. community water supplies has a negative effect on children’s IQ.”
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