Controversy about fluoride isn’t new, and it continues to resurface

BY SIMONE J. SMITH

Greetings, everyone! Today, we’re diving into a topic that has sparked a lot of discussions over the years: fluoride. Most of us have heard about the benefits of fluoride for dental health. It’s been praised for its ability to prevent tooth decay and strengthen enamel, which is why it’s commonly found in our toothpaste and even added to our drinking water. Dentists and public health officials often recommend it as a safe and effective way to maintain oral health, especially in communities where access to regular dental care might be limited. Sounds great, right?

Absolutely! Fluoride has been a significant player in reducing cavities, particularly in children. Studies have shown that since the introduction of fluoride into public water supplies, there’s been a noticeable decrease in dental issues across various populations. This is why it’s considered one of the greatest public health achievements of the 20^th century.

Fluoride, a mineral, is naturally present in many foods and available as a dietary supplement. Fluoride is the ionic form of the element fluorine, and it inhibits, or reverses the initiation and progression of dental caries (tooth decay) and stimulates new bone formation.

Soil, water, plants, and foods contain trace amounts of fluoride. Most of the fluoride that people consume comes from: fluoridated water, foods, and beverages prepared with fluoridated water. We already know that toothpaste and other dental products also contain fluoride.

However, as with many public health initiatives, there’s another side to the story. Controversy about fluoride isn’t new, and it continues to resurface. Some people argue that the addition of fluoride to water supplies might not be as safe as we’ve been led to believe. Concerns range from potential overexposure, which could lead to dental fluorosis—a condition that causes discoloration of the teeth—to more serious health concerns like possible links to bone health issues and even neurotoxicity.

That’s right. While the majority of health organizations worldwide, including: the World Health Organization and the Centers for Disease Control and Prevention, maintain that fluoride levels in drinking water are safe and beneficial, there are studies that suggest we should be cautious, especially concerning exposure levels in children, and vulnerable populations.

In 2015, U.S. officials lowered their recommendation for fluoride levels in drinking water to address a tooth condition called fluorosis, which can cause splotches on the teeth and was becoming more common in U.S. kids.

More recent research has pointed to a different problem, suggesting a link between higher levels of fluoride and brain development. Studies in animals showed fluoride could impact cell function in brain regions responsible for: learning, memory, executive function and behavior. A U.S. government report concluded that fluoride in drinking water at twice the recommended limit is linked with lower IQ in children.

The report, based on an analysis of previously published research, marks the first time a federal agency has determined — “with moderate confidence” — that there is a link between higher levels of fluoride exposure and lower IQ in kids. While the report was not designed to evaluate the health effects of fluoride in drinking water alone, it is a striking acknowledgment of a potential neurological risk from high levels of fluoride.

“I think this (report) is crucial in our understanding,” of this risk,” said Ashley Malin, a University of Florida researcher, who has studied the effect of higher fluoride levels in pregnant women on their children. “The findings from this report raise the questions about how these people can be protected and what makes the most sense.”

The report did not try to quantify exactly how many IQ points might be lost at different levels of fluoride exposure, but some of the studies reviewed in the report suggested IQ was two to five points lower in children who had higher exposures.

The report noted that about 0.6% of the U.S. population, roughly 1.9 million people are on water systems with naturally occurring fluoride levels of 1.5 milligrams or higher.

So, what should we make of all this? On one hand, we have substantial evidence supporting fluoride’s benefits for dental health. On the other, we have ongoing debates and concerns about its safety at certain levels. It seems the key takeaway is that, like with any public health measure, it’s important to stay informed, understand the science, and consider both the benefits and potential risks. It’s about balance and informed decision-making. For those with concerns, there are always alternatives, like using fluoride-free toothpaste, or drinking bottled water.

Thanks for shedding light on this topic! Remember, everyone, stay informed and make the best choice for your health and your family. Until next time, take care!