Robert F. Kennedy Jr. Says Trump Will Seek to Remove Fluoride From Drinking Water

Robert F. Kennedy Jr. said Saturday that among the first acts of a second Trump administration would be to “advise all U.S. water systems to remove fluoride from public water,” a stunning potential reversal of what is widely considered one of the most important public health interventions of the past century.

The statement, posted on social media, is among the more concrete pledges made by Mr. Kennedy — a former independent presidential candidate who is now backing Mr. Trump — in his capacity as a top adviser on Mr. Trump’s transition team. It also raises the specter of an all-out assault on public-health expertise should Mr. Trump win next week’s election, a prospect that has already caused significant alarm among experts across the medical and environmental fields.

As president, Mr. Trump would not have the power to order states and municipalities to remove fluoride from their water supplies; fluoridation is a matter of local control.

But a presidential pronouncement would inject the White House into a debate that stretches back to the 1950s, when conspiracy theories swirled around fluoridation, with critics claiming it was a Communist plot to poison Americans’ brains — a view that was memorably parodied in Stanley Kubrick’s film “Dr. Strangelove.”

More recently, however, there has been scientific debate around the practice, with some studies suggesting that excess exposure to fluoride — at levels twice the amount recommended by the Environmental Protection Agency — could harm infants’ developing brains. But scientists, including those at the federal government’s National Toxicology Program, say more research is needed to understand whether lower exposure to fluoride has an effect.

The process of adding small amounts fluoride to drinking water, or fluoridation, began about 80 years ago to prevent tooth decay. That effort, public health officials say, has been extraordinarily successful. A majority of Americans today live in water systems that are fluoridated, according to the Centers for Disease Control and Prevention, which lists fluoridation as one of the 10 great public health achievements of the 20th century.