Fluoride reduces cavities – and your IQ

October 09, 2012
Volume 09    |   Issue 41

Fluoride is a neurotoxin that reduces cavities in children. It also significantly lowers their IQs, as well, according to a recent study by Harvard researchers. But if you think fluoride only affects children, think again. It also can lower the IQ in kidney patients and people who drink a lot of water.

As you may know, most municipal water suppliers add fluoride to their water. They think they’re doing the community a service, helping them reduce their cavity risk. But a new study from Harvard says the tooth-saver might damage your brain.

These researchers looked at previous research to determine the effects of increased fluoride exposure. They wanted to find out if it delays neurobehavioral development.

Their systemic review and meta-analysis revealed that fluoride is a powerful neurotoxin that can significantly reduce your IQ and overall brain function. The researchers said, “Our results support the possibility of adverse effects of fluoride exposures on children’s neurodevelopment.” In fact, “The children in high fluoride areas had significantly lower IQ than those who lived in low fluoride areas.”

But, as I mentioned earlier, don’t think that this applies only to children. The authors added that “fluoride may cause neurotoxicity in animal models and acute fluoride poisoning causes neurotoxicity in adults.” Neurons are what allow your brain cells to communicate with other cells in your body. A neurotoxin destroys or damages these cells and severely hinders or eliminates this cell-to-cell communication.

Back in 2006, the National Research Council did a thorough review of the toxicological data available on fluoride. They concluded, “It's apparent that fluorides have the ability to interfere with the functions of the brain.”

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So who is at risk? To some degree, everyone is. Fluoride accumulates in your body. And it’s extremely difficult to remove. Over time, you can amass large amounts of it. This is why even low doses can harm babies, your thyroid gland, and anyone with kidney problems or who drinks a lot of water.

Many communities around the country are opting to skip fluoridation of their water. New York City has even considered removing it. Until your community follows suit, it’s vital you install a water filter that filters out fluoride. Not all of them do. Reverse osmosis filters eliminate fluoride, but they also remove important minerals. If your drinking water has no minerals, be sure to take a high potency supplement like Healthy Resolve to make sure you’re not deficient in these nutrients.

If you’d like more information and what action you can take, please contact the Fluoride Action Network at www.fluoridealert.org.

Your voice of reason in Women's Health,


“Developmental Fluoride Neurotoxicity: A Systematic Review and Meta-Analysis,” Anna L. Choi, Guifan Sun, Ying Zhang, Philippe Grandjean, Environmental Health Perspectives, July 2012 doi: 10.1289/ehp.1104912.

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