This week brings a significant update in the ongoing fluoride litigation and several important new studies worth noting. Below I summarize the latest developments and key research findings.
1. Federal lawsuit on water fluoridation: a major document release š§āļø
The federal case that has been paused is now moving forward because the court ordered the public release of the National Toxicology Programās (NTP) multi-year systemic review on fluorideās effects on the developing brain. That report, which had previously been withheld by the U.S. Department of Health and Human Services, will be released publicly on March 15. I will review and explain the report as soon as it becomes available so readers can understand what the data show and what it means for public health and policy.
2. What aspects of the brain does fluoride affect? š§ š§
A growing body of research indicates that fluoride exposure can harm the developing brain. Rather than general statements about IQ, several studies highlight effects on memory and learningāfunctions central to daily life, education, and long-term cognitive health. Those specific deficits are especially concerning because they affect skills that shape a personās ability to function and thrive.
Relevant studies include findings available on PubMed:
Study #1: https://pubmed.ncbi.nlm.nih.gov/19957215/
Study #2: https://pubmed.ncbi.nlm.nih.gov/12622200/
3. New research: fluoride exposure in pregnancy and hypothyroidism š¤°š½š§
A recent study raises concerns that fluoride exposure during pregnancy may contribute to maternal hypothyroidism. Fluoride has a long history of use in managing overactive thyroid conditions, but new evidence suggests it could interfere with enzymes and with iodine uptakeāiodine being essential for thyroid hormone production. The studyās lead author, Meaghan Hall, notes that this is troubling because hypothyroidism in pregnancy is a known risk factor for developmental disorders in children. The full study can be read here: https://www.sciencedirect.com/science/article/pii/S0048969722082523
4. Tongue-tie release Q&A ā watch for practical guidance š
We hosted a detailed Instagram Q&A on tongue-tie release in adults with Jacqueline Carcaramo, RDH. The session covered assessment, treatment options, recovery expectations, and when to consider a consultation. To view the full discussion, visit @askthedentist on Instagram and find the Highlight titled āTongue Tie.ā Itās a helpful resource if you or someone you know is exploring a release.
Wishing you a great week,
P.S. The water filter I use is linked in previous posts; using an effective home filter is a straightforward way many people choose to reduce fluoride in their drinking water.