Fluoride is a trace mineral found in soil, water, and some foods. Even though fluoride is naturally occurring, it is important to note that natural fluoride of the Earth is very different from synthetic forms of fluoride.
In the mid-1940s, synthetic fluoride, including sodium fluoride, fluorosilicic acid, and sodium fluorosilicate, began being added to select water supplies to prevent dental decay. Since then, synthetic forms of fluoride have also been added to various pesticides, some medications, teflon pans, many toothpastes, fluoride tablets, and fluoride trays given during dental cleanings.
Fluoride Exposure:
The recommended daily amount of fluoride per the National Institutes of Health varies based on age: 0.1 mg from birth to 3 mg for adults. The upper limit ranges from 0.7 mg from birth to 10 mg for adults.
Dangers of Synthetic Fluoride:
- Dental Fluorosis: A condition of high fluoride exposure topically to the teeth, resulting in discoloration. High levels of synthetic fluoride can also contribute to crowded teeth.
- Skeletal Fluorosis: High amounts of fluoride ingested can weaken bone structure and lead to a condition known as skeletal fluorosis. Daily dosages between 6 mg and 10 mg have been linked to skeletal fluorosis, osteoarthritis, among other musculoskeletal conditions.
- Hypothyroidism: Synthetic fluoride displaces the mineral iodine, which is essential for thyroid function. Chronic exposure to synthetic fluoride can suppress thyroid function and cause hypothyroidism. Synthetic fluoride, at the dose of 2 mg to 5 mg, has actually been used as a treatment for overactive thyroid (hyperthyroidism).
- Skin Conditions: Chronic exposure to synthetic forms of fluoride disrupts skin flora and the skins’s pH balance. Many people with high levels of synthetic fluoride in their system struggle with facial and body acne.
- Developmental Delays and Learning Disabilities in Children: The nervous systems of children are rapidly growing and highly susceptible to the effects of synthetic fluoride. Developmental delays and learning disabilities, such as ADHD and ADD, may be linked to high levels of synthetic fluoride exposure.
- Toxicity: Synthetic fluoride is toxic to the nervous system and many other organ systems in the body. Synthetic fluoride also induces damage to the energy factories inside of cells (mitochondria).
Symptoms of Acute Fluoride Poisoning:
Acute high level intake of fluoride has been associated with the following symptoms listed below:
- Nausea / vomiting
- Abdominal pain
- Diarrhea
- Drooling
- Change in taste
- Headache
- Seizures
- Tremors
- Muscle weakness
- Shortness of breath
- Heart attack (severe cases)
Note: children’s toothpaste containing fluoride sold in the United States must have a warning label stating “contact poison control if swallowed.”
Ways to Decrease Fluoride Exposure & Alternatives to Fluoride:
There are many ways to decrease and ultimately eliminate exposure to synthetic forms of fluoride. The first step is to swap out toothpastes containing fluoride for natural alternatives containing hydroxyapatite, such as Primal Life Organics or David’s. Hydroxyapatite is a form of calcium that is non-toxic and equally effective to fluoride.
Another way to cut down on fluoride exposure is to decline the fluoride trays offered during dental cleanings. Dr. Miranda Hill recommends that all patients with thyroid conditions and chronic illnesses avoid supplemental fluoride offered at dental cleanings.
If your tap water contains added fluoride, investing in a high quality water filter is essential. Dr. Miranda recommends the following brands, Berkey Water Filters and Clearly Filtered.
For more information and research about fluoride visit Fluoride Action Network at FluorideAlert.org
References:
- Office of dietary supplements - fluoride. NIH Office of Dietary Supplements. Accessed November 26, 2023. https://ods.od.nih.gov/factsheets/Fluoride-Consumer/.
- Arthritis. Fluoride Action Network. December 8, 2015. Accessed November 26, 2023. https://fluoridealert.org/issues/health/arthritis/.

