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In late September, a federal judge ruled that the U.S. Environmental Protection Agency must conduct further study of levels of fluoride added to water supplies.
The EPA said it was reviewing the decision, which neither bans or limits fluoride in drinking supplies. Food & Water Watch led a coalition of environmental organizations that sued the EPA in 2017 over the limits of fluoride used. The group argued water with more than double the recommended limit has been associated with lower IQ levels in children.
Most U.S. drinking water supplies have been fluoridated since 1945, and the EPA recommends a level of 0.7 milligrams of fluoride per liter of water. In recent years, more communities are challenging water fluoridation.
The American Academy of Pediatrics and the American Dental Association are not changing their recommendations on using optimally fluoridated water to prevent cavities, and the National Academies of Sciences, Engineering and Medicine twice rejected previous drafts of the NTP report, and other studies have not found a link between fluoride and IQ levels.
Read the ADA's statement here.
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