A new meta-analysis has raised alarming questions as to the health impacts of fluoride exposure. This issue is especially concerning for pregnant women and newborns. Fluoride has long enjoyed a reputation as simply a cavity busting miracle. In a surprising new study, the largest yet on the subject, scientists were able to demonstrate that its detrimental effects far exceed any purported benefits.
The research cements the idea that fluoride exposure is dose-related meaning that the greater the fluoride exposure leads to a higher risk of negative health impacts. Then Secretary of Health and Human Services, Robert F. Kennedy Jr. testified that the more fluoride a child is exposed to the lower their IQ will be. He further concluded that the benefits of fluoride are mainly topical. This statement underscores a growing belief among some health officials that fluoride’s effectiveness in preventing cavities may not come from systemic absorption, as previously thought.
Philippe Grandjean, a leading researcher in the field, emphasized that the source of fluoride—whether from water, toothpaste, or other sources—does not mitigate its harmful effects. He emphasized, “It does not matter what the source of the fluoride is.” Grandjean’s findings have drawn attention to fluoride’s toxicity, particularly regarding early brain development in infants.
And the implications of fluoride exposure go far beyond children’s cognitive development. A study recently published in the Annual Review of Public Health indicates that fluoride negatively affects bone strength. It is likely to harm thyroid function too. Kennedy Jr. went on to provide the scientific evidence for the hazards involved, mentioning that fluoride could cause “extreme loss in bone density.” These health concerns are just as shocking considering that more than 200 million Americans—about 3 out of 4 of us—drink fluoridated water.
The CDC has historically done a great job extolling the benefits of fluoride as a safe and effective way to strengthen teeth and reduce cavities. Compelling evidence has lawmakers urging a re-evaluation of these guidelines. Utah made headlines earlier this year when it became the first state to outlaw fluoride from its public drinking water. In addition, proposals to restrict or eliminate fluoride use have emerged in other states, including Ohio, South Carolina, and Florida.
Kennedy Jr. intends to push the CDC to stop recommending the fluoridation of drinking water at all. He urged that the only real benefit is from using it topically. He doesn’t think there’s a reason to add it to our drinking water these days, particularly given that people use fluoridated toothpaste and mouthwashes. This abrupt change in perception signals a new trend in stories about fluoride usage and local policymaking for public health.
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