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Miami-Dade mayor cites medical guidance, vetoes measure to end water fluoridation

Miami-Dade Mayor Daniella Levine Cava stands with invited medical and dental experts during a news conference on Friday, April 11, 2025, to discuss her veto of a bill to end fluroridation in the water supply.
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Miami-Dade Mayor Daniella Levine Cava stands with invited medical and dental experts during a news conference on Friday, April 11, 2025, to discuss her veto of a bill to end fluroridation in the water supply.

The measure passed by an 8-2 vote, and an override requires two-thirds of participating commissioners. Mayor Daniella Levine Cava urged the commission not to override her decision.

Miami-Dade Mayor Daniella Levine Cava on Friday announced she was “following the guidance of medical experts” and vetoing a measure to stop adding fluoride to the county’s local water supply.

The county commission had voted 8-2 last week to end the practice, as about two dozen local governments in the state have previously done.

In a social media post, the mayor called on the commission to “sustain this veto so we can continue building a safe and healthy Miami-Dade.”

ALSO READ: HHS will review guidance on the addition of fluoride to drinking water

A veto override would require two-thirds of the commissioners taking part in the vote, which is expected to take place during a May 6 meeting.

“I urge my colleagues to once again join me in rising above the political fray and do what’s right for the people, their health and individual freedom,” Commissioner Roberto Gonzalez, who introduced the measure, wrote on social media.

The veto comes after Levine Cava, a Democrat, hosted a roundtable with medical experts, dentists and parents about the issue.

ALSO READ: Florida Farm Bill, targeting fluoridation, heads to Senate floor

“I have listened to the dentists and medical experts, and the message is clear: Water fluoridation is a safe, effective and efficient way to maintain dental health in our county — and halting it could have long-lasting health consequences, especially for our most vulnerable families,” she wrote on social media.

Fluoridation has been a common practice across the country for decades to prevent tooth decay, especially in children. Proponents also say it makes the mineral available to vulnerable populations who do not have regular access to dental care or products such as toothpaste that contain fluoride.

Fluoride has been added in Miami-Dade water since 1958.

However, over the past year, there has been a push to end fluoridation after studies found that the fluoride in amounts more than what is permitted in water supplies can affect the cognitive development of children. Also, it became a matter of including a medical additive without the permission of the individual.

ALSO READ: Miami-Dade commissioners cast doubt on Ladapo's evidence against fluoride

“No to forced medication!” Republican Gov. Ron DeSantis wrote on X on Thursday night.

In March, before the commission vote, the county’s Safety and Health Committee heard testimony from anti-fluoridation proponents, including the state Surgeon General Dr. Joseph Ladapo.

A measure in the Legislature may make local fluoride decisions unnecessary. A wide-sweeping agriculture bill moving through the Legislature would prohibit “additives,” including fluoride, from being used in public water systems.

Also, U.S. Health and Human Services Secretary Robert Kennedy Jr. is directing the Centers for Disease Control and Prevention to make new recommendations on the addition of fluoride to water sources.

Kennedy is directing the CDC to reconvene an independent panel of 15 health experts to examine the role fluoride plays in water sources and whether it can be detrimental to public health.

In addition, U.S. Environmental Protection Agency Administrator Lee Zeldin also said his agency would review scientific evidence regarding the health outcomes of the consumption of fluoridated water to determine its safety.

The Miami-Dade resolution instructed the county’s water and sewer department to stop the practice within 30 days.

“By vetoing this bipartisan resolution, our mayor is acting like a typical politician, relying on partisan pollsters and tired talking points, while putting people’s health at risk, especially pregnant women, infants, children and other vulnerable groups,” Gonzalez, a Republican, wrote.

“Removing fluoride from our drinking water has received overwhelming scientific and public support, including from state to national levels of government.”

I’m the online producer for Health News Florida, a collaboration of public radio stations and NPR that delivers news about health care issues.