One was a federal study released in August by the National Toxicology Program, part of the Department of Health and Human Services, that linked lower IQs in children with high levels of fluoride exposure — at rates about double the fluoride that’s found in Miami-Dade and other municipal water systems.

The longstanding debate on adding fluoride to water systems is front and center again.On friday, florida surgeon general joseph ladapo advisi

The state’s top health official cited controversial studies that suggest the widely hailed public health practice poses a risk to developing brains.