Fluoride is once again making headlines, but this time for concerning reasons. A recent review of data suggests that higher levels of fluoride exposure may be linked to decreased IQ in infants and young children. Traditionally, fluoride has been added to water to strengthen tooth enamel and prevent cavities, leading to improved dental health in children and potentially reducing school absences, dental costs, and even the risk of cardiovascular disease later in life.
However, a new study by scientists at the NIH’s National Toxicology Program raises questions about the safety of fluoride exposure, particularly through water fluoridation. The study found that children exposed to higher levels of fluoride in their early years had lower IQ scores compared to those with lower exposure levels. This research, published in JAMA Pediatrics, is not the only one to raise concerns about fluoride. A previous study linked higher fluoride exposure in pregnant women to neurobehavioral problems in their children.
While some experts question the need for water fluoridation given the availability of fluoride in toothpaste, others argue that the benefits of fluoride still outweigh the risks. The debate over fluoride’s effects on health is ongoing, with conflicting studies and interpretations. Some studies have failed to find a link between low fluoride exposure and IQ loss, while critics have raised concerns about potential health risks associated with fluoride.
Experts emphasize the importance of further research to determine the potential risks of fluoride exposure, especially at levels higher than those recommended for U.S. drinking water. They suggest precautions for pregnant women, young children, and those living in areas with naturally high fluoride levels to minimize exposure. Overall, the debate over fluoride’s impact on health continues, with experts calling for a reevaluation of current guidelines based on new evidence.