The court found "substantial and scientifically credible evidence" of fluoride's risk but stopped short of concluding fluoride is harmful to public health.

Fluoride in drinking water poses a risk to the intellectual development of children, and U.S. environmental regulators need to address it, a federal judge in California has ruled.

A federal judge in California has ordered the U.S. Environmental Protection Agency to strengthen regulations for fluoride in drinking water, saying the compound poses an unreasonable potential risk to children at levels that are currently typical nationwide.

A federal judge has ordered the Environmental Protection Agency (EPA) to address the potential impacts of fluoride in drinking water on IQ levels. In a new ruling this week, Obama-appointed judge Edward Chen ordered the EPA to take regulatory action over the issue.