The Dangers of Fluoride on the Brain and IQ with Dr. Mark Burhenne


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Dhru and Dr. Burhenne 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. They 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.

In this episode, we dive into: 

  • What made Dr. Burhenne first question fluoride (3:24) 
  • Why fluoride is added to our water (8:52) 
  • Conventional dentistry and fluoride use (14:22) 
  • Studies that show why we need to rethink adding fluoride to our water (21:47) 
  • The EPA Federal lawsuit that could limit fluoride in drinking water (24:25) 
  • The effects of fluoride on the brain (31:42) 
  • How we get fluoride in water (35:29) 
  • Why fluoride in toothpaste doesn’t really work (37:59) 
  • How to choose a water filter (50:18) 
  • Dr. Burhenne’s toothpaste recommendations (56:36) 
  • What actually creates cavities and healthy teeth (1:05:02) 
  • What we can learn from modern hunter-gatherers when it comes to dental health (1:11:22) 

Also mentioned in this episode:

Excerpts from:

Gibson S. (1992). Effects of fluoride on immune system function. Complementary Medical Research 6: 111-113. 

"Fluoride is one of the most toxic inorganic chemicals in the Earth's crust, but it is believed that at a concentration of 1ppm, or 1m g/mL in public water supplies, and at the concentrations used in dental preparations, it is both safe and beneficial to teeth. However, with increasing experience, doubts about both safety and efficacy have arisen. While there is evidence of harm to the stomach, kidneys, thyroid, bones and teeth at higher concentrations, evidence for harm at concentrations around 1m g/mL is controversial. A possible link between fluoridation of public water supplies and an increase in the cancer death rate has been debated for over 20 years and there is now no doubt that fluoride can cause genetic damage.

 ...concentrations of fluoride of 0.5, 1.0, 2.0 and 20.0 ppm significantly inhibit the ability of leukocytes to migrate after incubation for 3 hours at 37° C.

The immune system is our first line of defense against attack whether from the outside from bacteria, viruses and other parasites, or from within, from the spontaneous generation of potentially cancerous cells. Any agent which affects the ability of the immune system to function efficiently either by a direct toxic effect or by interfering with the release of cytokines will tend to reduce the resistance of the population to infection as well as increasing the susceptibility to cancer and immune depressed states such as the post-viral fatigue syndrome and AIDS. The effect on individuals already suffering from such immune-depressed conditions is likely to be serious.

All recent large-scale surveys have shown minimal benefits to teeth from fluoridation programs. On the other hand, chronic exposure to fluoride at 1ppm could have a long-term detrimental effect on the general health of the population. Over the past 20 to 30 years there has been a substantial and unexplained rise in a number of conditions such as allergy, auto-immune diseases and the post viral fatigue syndrome. The common factor in these conditions is an alteration in the efficiency of the immune system."

A Bibliography of Scientific Literature on Fluoride



The biochemical cause of gum disease and tooth decay

When there is a low level of blood phosphorus over a period of several months then tooth decay develops. And based on this same research, when there is a low level of blood calcium over a period of months, gum disease begins.

One recipe for creating gum disease is a diet high in meat and grains and low in calcium from dairy products. A diet that heavily favors meat and grains and is also low in calcium is disproportionately high in phosphorus and can contribute to a calcium/phosphorus imbalance in the body that may lead to gum disease.

In the most common type of gum disease, which Dr. Hawkins called Type 1, the blood calcium is too low relative to blood phosphorous. In Type 2 gum disease, both the blood calcium and blood phosphorous are low. Both of these conditions are the result of significant vitamin and mineral deficiencies.



The New Zealand Supreme Court has ruled, by majority vote, that “Water fluoridation is compulsory mass medication, in breach of human rights”It confirmed that fluoridation is a medical treatment as claimed by opponents for over 60 years. It is not a supplement “just topping up natural levels”, as previously claimed by New Zealand’s Ministry of Health and by some health authorities and health professionals in Australia

The impracticality of avoiding fluoridated water makes it compulsory in practice, the majority also ruled.

Three judges held that there was conflicting scientific evidence, confirming that the science is NOT settled.

Now that the Supreme Court has ruled fluoridation is medical treatment without consent, and with the mounting evidence that it is ineffective and carries significant health risks, it is time for politicians and the health sector to rethink the practice. 

New Health New Zealand Incorporated v South Taranaki District Council  NXSC(59)
(99) “…we find that fluoridation of drinking water is the provision of medical treatment. It involves the provision of a pharmacologically active substance for the purpose of treating those who ingest it for dental decay. We agree with the Courts below that people who live or work in areas where fluoridation occurs have no practical option but to ingest the fluoride added to the water. So the treatment is compulsory.” June 29, 2018