Episode 207

The Dangers of Fluoride on the Brain and IQ

With Dr. Mark Burhenne

If we want to continue learning how to optimize health, we have to stay open to new information that might contradict previous research, even if it questions the status quo. 

Fluoride and dental health are great examples of this process. Fluoride gained support due to an observation one man made many years ago, which has progressed into many cities fluoridating their water and most dentists singing its praises. But over the years the research on fluoride has greatly evolved, to the point that we can now see large differences in how it works topically versus internally, and identify risks that come with consumption. 

My guest on today’s podcast, Dr. Mark Burhenne spent much of his time as a new dentist and new parent grappling with whether it was a good idea to give fluoride to his kids. 

In this episode we talk about the emerging research that supports connections between fluoride and IQ changes, neurotoxicity, arthritis, osteosarcomas, and changes in metabolism, among other concerns. Dr. Burhenne explains how fluoride works in the body, and why using it topically is very different than consuming it. We also talk about the root cause of cavities—it’s not a deficiency in fluoride, but the sugary and starchy foods making up the Standard American Diet, an altered oral microbiome, and mouth breathing.

Also mentioned in this episode:

For more on Dr. Burhenne you can follow him on Instagram @askthedentist, on Facebook @askthedentist, and through his website https://askthedentist.com/. Check out his podcast Ask The Dentist. Get his book, The 8-Hour Sleep Paradox: How We Are Sleeping Our Way to Fatigue, Disease and Unhappiness at https://askthedentist.com/the-book. You can search for a Functional Dentist at https://askthedentist.com/directory/.


For more on Dhru Purohit, be sure to follow him on Instagram @dhrupurohit, on Facebook @dhruxpurohit, on Twitter @dhrupurohit, and on YouTube @dhrupurohit. You can also text Dhru at (302) 200-5643 or click here https://my.community.com/dhrupurohit.

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This episode is brought to you by CogniBiotics.CogniBiotics is a brain and mood-enhancing probiotic from BiOptimizers that contains specifically chosen strains with a high level of research supporting mental health and performance. CogniBiotics also contains 17 nootropic and adaptogenic herbs which work in synergy with your gut bacteria to boost cognitive function, mood, and stress resilience. If you want to support your own gut-brain axis, BiOptimizers is offering my community a special deal of 10% off. Just go to www.cognibiotics.com/dhru and use code DHRU10.

I hope you enjoyed this conversation as much as I did.
Wishing you health and happiness.
Dhru Purohit

In this Episode, you will learn

  1. What made Dr. Burhenne first question fluoride
  2. Why fluoride is added to our water
  3. Conventional dentistry and fluoride use
  4. Studies that show why we need to rethink adding fluoride to our water
  5. The EPA Federal lawsuit that could limit fluoride in drinking water
  6. The effects of fluoride on the brain
  7. How we get fluoride in water
  8. Why fluoride in toothpaste doesn’t really work
  9. How to choose a water filter 
  10. Dr. Burhenne’s toothpaste recommendations
  11. What actually creates cavities and healthy teeth
  12. What we can learn from modern hunter-gatherers when it comes to dental health 


Dhru Purohit

Dhru is the host of the Dhru Purohit Podcast, a top 30 health podcast with over 30 million downloads. His interviews focus on the inner workings of the brain and the body and feature the brightest minds in wellness, medicine, and mindset.

Dhru Purohit is also a serial entrepreneur and investor in the health and wellness industry.

Dr. Mark Burhenne

Dr. Burhenne is a functional dentist. He is the author of the #1 Amazon bestseller The 8-Hour Sleep Paradox. He has appeared in Dr. Hyman’s Sleep Masterclass, the oral microbiome docuseries Gateway to Health, NPR, and many more. He received his degree from the Dugoni School of Dentistry in San Francisco and is a member of the American Academy of Dental Sleep Medicine (AADSM), Academy of General Dentistry (Chicago, IL), American Academy for Oral Systemic Health (AAOSH), and Dental Board of California. 

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