FDA Commissioner Says Fluoride In Water, Supplements May Be ‘Carpet-Bombing’ Internal Organs

Food and Drug Administration (FDA) Commissioner Marty Makary warned that the chemicals making up the fluoride being used in drinking water could be ‘carpet-bombing’ the organs of American children.

Makary criticized the practice of fluoridation in drinking water in a speech for The Fund for American Studies on Wednesday in the Hart Senate building. The commissioner warned that the practice could damage the microbiome in the body’s GI tract.

“We’re putting a chemical in the food supply, in the drinking water that, if it does reduce cavities, it’s because it’s what we call bacterial-cidal, that is, it kills bacteria in the teeth. Well, if it kills bacteria in the teeth, what’s it doing to the microbiome? ” Makary said.  (RELATED: RFK Jr. Wants Fluoride out Of Water — And It’s Not Nearly As Crazy As His Detractors Claim)

Makary described the body’s microbiome as “the garden of a billion different types of bacteria that line the GI tract that live in an equilibrium.” And he questioned the effects that the disruption of this microbiome via fluoride can have on a “generation of kids.”

“Is it carpet-bombing the microbiome like we’ve seen antibiotics do and other drugs? And are we permanently altering the microbiome?” Makary added.

The agency moved to ban ingestible fluoride prescriptions for children in May, citing studies that suggest a connection between “fluoride and thyroid disorders, weight gain, and possibly decreased IQ.” The press release also praised the movement by several states to “stop fluoridation of drinking water.” However, the FDA currently does not regulate fluoride in drinking water at a federal level.

Today, the FDA is taking action to remove concentrated ingestible fluoride prescription drug products for children from the market. A growing body of research is demonstrating how ingested fluoride can alter the gut microbiome. This is especially concerning with young children… pic.twitter.com/pKTtkGyV3J

— Dr. Marty Makary (@DrMakaryFDA) May 13, 2025

Health and Human Services Secretary Robert F. Kennedy Jr. decried the Centers for Disease Control and Prevention’s (CDC) recommendation of community water fluoridation earlier this year. In the May press release regarding FDA action to end prescription ingestible fluoride, the HHS secretary praised Makary’s “leadership on this vital issue.”

“Ending the use of ingestible fluoride is long overdue,” RFK Jr. said in a prepared statement at the time. “I’m grateful to Commissioner Makary for his leadership on this vital issue — one that directly safeguards the health and development of our children. This decision brings us one step closer to delivering on President Trump’s promise to Make America Healthy Again.

The FDA held a public meeting regarding fluoride supplements on Wednesday. A final decision on banning these supplements is not expected until October.

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