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Study finds that fluoride exposure during pregnancy may negatively impact child’s brain development

Reading Time: 2 minutes

A new study published in JAMA Network Open has found a potential link between higher fluoride intake during pregnancy and behavioral problems in toddlers. The research, conducted by the MADRES Center for Environmental Health Disparities at the University of Southern California, followed predominantly Hispanic families in Los Angeles from pregnancy through childhood.

The study analyzed urine samples from 229 pregnant mothers in their third trimester to calculate fluoride exposure levels. Children whose mothers had higher levels of fluoride were found to be 83% more likely to exhibit “internalizing” behavioral problems such as temper tantrums, headaches, stomachaches, anxiety, and symptoms associated with autism.

Lead study author Ashley Malin, an assistant professor of epidemiology at the University of Florida, noted that this is the first US-based study to examine the association between prenatal fluoride exposure and neurobehavioral problems in children. The findings are particularly significant as the women in the study were exposed to relatively low levels of fluoride, typical of those living in fluoridated regions in North America.

While fluoride is commonly added to drinking water to prevent tooth decay, the study raises concerns about potential risks to fetal brain development. Previous research has also suggested a link between fluoride exposure during pregnancy and adverse outcomes such as lower IQ scores, greater ADHD symptoms, and altered cognitive function.

The authors of the study are not advocating for a complete ban on water fluoridation but suggest the need to establish recommendations for limiting fluoride exposure during pregnancy. Pregnant women are advised to consider drinking filtered tap water, as even tabletop pitcher filters can effectively reduce fluoride levels.

The anti-fluoridation movement has been gaining traction, with some communities pushing for bans on water fluoridation, citing concerns about health freedom. However, proponents of water fluoridation argue that it is a crucial public health measure that has been shown to strengthen enamel, inhibit bacterial growth, and prevent tooth decay.

As further research is needed to establish a causal link between fluoride exposure during pregnancy and neurobehavioral problems in children, the study highlights the importance of understanding the potential risks and benefits of fluoride intake during this critical developmental period. Researchers are continuing to investigate how fluoride exposure during pregnancy may impact brain development in infants, emphasizing the need for informed decision-making regarding fluoride consumption during pregnancy.

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