Florida Becomes Second State To Ban Fluoride In Public Water

Move Follows Similar Ban in Utah; Momentum Grows in Other States

Florida Governor Ron DeSantis signed legislation Thursday banning the addition of fluoride to public drinking water, making Florida the second state in the nation to take such action. The move follows Utah’s fluoride ban enacted on May 7, 2025, and reflects a growing trend in states like Ohio and South Carolina, where similar bills are under consideration.

Legal and Scientific Context

The Florida law comes amid ongoing legal debates over the safety of water fluoridation, including a federal court case initiated under the Toxic Substances Control Act. While the case has not led to a formal ruling declaring the U.S. recommended fluoride level of 0.7 mg/L an “unreasonable risk,” it has drawn attention to recent findings from the National Toxicology Program. The NTP’s 2022 draft report concluded there is low to moderate evidence that elevated prenatal fluoride exposure may be associated with reduced IQ in children. Some studies cited in the report estimated about a 1-point IQ reduction for every 0.28 mg/L increase in maternal urinary fluoride concentration, although the NTP did not endorse a specific numerical threshold.

Still, federal agencies like the National Institutes of Health (NIH) maintain that toxic fluoride levels are “virtually impossible” under current U.S. water system standards. Despite this, legal interpretations of risk have shifted political momentum away from federal guidance among certain groups.

Public Health Divide

The decision has reignited debate over water fluoridation — a long-standing public health policy dating back to the 1940s.

Opponents of the ban argue:

• Fluoride helps prevent tooth decay, especially in children.
• The Centers for Disease Control and Prevention (CDC) calls water fluoridation one of the top public health achievements of the 20th century.
• Children in lower-income or rural areas could suffer the most, as they are less likely to receive routine dental care.

Supporters of the ban counter:

• Fluoride should be a personal health choice, not a government-mandated additive.
• The risk of cumulative fluoride exposure from water, toothpaste, and food is underestimated.
• Courts and emerging science should guide public safety policy.

What’s Next?

With states like Ohio and South Carolina exploring similar legislation, fluoride bans may gain traction beyond Utah and Florida. The bans also underscore a shift toward state-level autonomy in public health policy — a key priority for many center-right lawmakers.

Whether this marks the beginning of a larger trend or a flashpoint issue remains to be seen. For now, Florida joins a small but growing group of states pushing back on long-standing federal health norms in favor of a more localized approach.

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