Fluoride at twice the recommended limit is linked to lower IQ in kids

A recent U.S. government report has established a link between elevated fluoride levels in drinking water and lower IQ in children, marking a significant finding in public health discussions. The report, released by the National Toxicology Program, indicates that fluoride concentrations exceeding the recommended limit of 0.7 milligrams per liter—specifically at 1.5 milligrams or higher—are associated with a decrease in IQ scores, with some studies suggesting a reduction of 2 to 5 points. This is the first time a federal agency has made such a determination with moderate confidence. The report synthesizes findings from various international studies and highlights the need for further research on the effects of fluoride on both children and adults. While fluoride is known for its dental health benefits, concerns have been raised about its potential neurological risks, particularly for developing fetuses and young children. The American Dental Association has expressed reservations about the report, emphasizing the importance of fluoride in preventing tooth decay. The findings prompt discussions on how to protect populations exposed to high fluoride levels and whether labeling beverages for fluoride content should be considered.

- A U.S. report links high fluoride levels in drinking water to lower IQ in children.

- The report indicates fluoride levels above 1.5 mg/L are associated with IQ reductions.

- Further research is needed to understand the effects of fluoride on adults and lower exposure levels.

- The American Dental Association has raised concerns about the report's conclusions.

- Discussions on fluoride labeling and protective measures for affected populations are encouraged.