Fluoride Action Network

For nearly 25 years, the Fluoride Action Network has been the leading educational organization on fluoride toxicity. 2025 was our biggest year ever and we expect 2026 to go even harder. Financial support from those who believe in this mission is crucial to our ability to continue this work. Consider making a tax-deductible donation to FAN today. Your donation will go directly to funding our education, advocacy, and legal work. Thanks for your support!

GEORGIA - Unsafe Levels of Fluoride Detected in Lee County Drinking Water "A Notice of Violation has been issued in Lee County as of Wednesday, April 8, after the Environmental Protection Division (EPD) discovered that Lee County Utilities Authority Water System exceeded the maximum contaminant level (MCL) for fluoride. The maximum contaminant level for fluoride is 4.0 mg/L, based on a Running Annual Average (RAA) for the sample results over four quarters. Fluoride levels in Lee County reportedly reached 7.2 mg/L in the first quarter of 2026, resulting in the violation. To address the issue, a Corrective Action Plan (CAP) has been implemented."

A new study is being touted as showing no relationship between fluoridated water and IQ. But here's what you should know. The study focuses on a population in Wisconsin that was born in 1940 -- which is five years before any communities in the U.S. began fluoridating their water. This is an important limitation because the key window of vulnerability for fluoride's cognitive effects is the early years of life (in utero and infancy) when the brain is undergoing rapid development and the blood brain barrier does not yet adequately protect the baby from toxic chemicals. Curiously, the authors *claim* they measured the effect of fluoridation "from birth." This is where it gets interesting. The authors admit they have no data on water fluoride levels from the 1940s. None. That's a pretty serious limitation by itself. But it gets worse. To get around this data gap, the authors relied on a 2020 publication that provides test results for about 2 wells per county in Wisconsin. To use this data, the authors needed to make several big assumptions. This is where it gets bad, real bad. The authors assumed that if ONE well in a county had "optimal" fluoride levels (0.7 mg/L) then EVERY CHILD in that county was exposed to fluoridated water. This assumption, which is critical to the study, has basically no connection to reality. Why? Because the level of fluoride in a single well tells you virtually nothing about the level of fluoride in other wells, let alone in *all* other wells, let alone in *public water supplies* (which are often derived from surface waters, not well water). Why does this matter? Because the study's use of a clearly erroneous measurement of early life exposure to fluoridated water made it virtually impossible for this study to detect an association between early-life fluoride exposure and IQ. It's like trying to determine if prenatal exposure to Tylenol is associated with autism by determining the Tylenol use of the child's neighbor rather than the child's mother.

"A paper dropped this morning in PNAS claiming that community water fluoridation has no effect on adolescent IQ or adult cognitive function. The conclusion is not supported by the methodology. Here are the reasons why, and here’s what the actual data show..." popularrationalism.substack.com/p/pnas-just-pu…

New Fluoride IQ Study Is "Policy Advocacy Masquerading as Science" Excellent analysis by @lifebiomedguru "What is not contestable is what the paper’s own opening paragraph tells us about why it exists. The authors describe their study as a response to evidence “cited in recent decisions to end CWF in Utah, Florida, and elsewhere.” The paper was designed after those policy decisions were made, to counter them. The conclusion — null effect, no harm from fluoridation — is the conclusion that protects an entrenched public health position."

In fact, 87 studies now show lowered IQ from fluoride exposure (1989 – 2025): fluoridealert.org/content/part-1…

The dental lobby and the national media are touting a new study that claims fluoride does not reduce IQ. Problem is the IQ tests in this study were given to high school students in 1956 when they were 16 years old, so they would have been born in 1940. That is 5 years before the first artificial fluoridation trial in the US had even begun, so not a single person in this dataset had prenatal exposure from fluoridated water, or childhood exposure to fluoridated water from birth to past age 5 years. Almost all prior studies finding neurotoxicity found it from prenatal or early childhood F exposure. So this study is incapable of assessing whether F is a developmental neurotoxicant. Fact Check: False❌

US Water Utilities Facing A Fluoride Shortage "Some U.S. water utilities are reporting the Middle East war is disrupting their ability to maintain recommended fluoride levels in the drinking water. Over the past few weeks, a few water utilities have said their supply had been disrupted, according to the Association of Metropolitan Water Agencies. What’s driving the fluoride shortage? Israel is one of the world’s top exporters of fluorosilicic acid, according to the U.S. Environmental Protection Agency. At least one Israeli supplier has been facing workforce challenges because many employees have been called into active military service, said Dan Hartnett, chief policy officer for the Association of Metropolitan Water Agencies. “That has led to decreased production, and supply shortages for the U.S. market,” he said.

The Louisiana Senate has passed a bill to allow any public water system to opt out of putting fluoride in its water.

PENNSYLVANIA - "The Borough of Hanover will hold a town hall meeting later this month to discuss the potential removal of fluoride from the drinking water supply. "The meeting will be a listen-and-learn session to gather public input on the potential removal of fluoride from the Borough’s water system," officials said in a press release. "Borough staff will present information on current fluoride use, including updates on costs and supply, and steps required to move forward. Council will not make any rulings on the matter at the meeting." The matter will go to Council for consideration at the May meetings on May 20 and 27.

LOUISIANA - A bill that could make it harder for communities to keep fluoride in their drinking water sailed through the Louisiana Senate with little debate on the floor and passed 26-7. If passed, fluoride would no longer be added automatically to tap water in Louisiana. Local voters would have to approve it through an election. SB4 still needs to pass the House of Representatives in order to become law.

MARYLAND - "WSSC Water is temporarily reducing the amount of fluoride added to drinking water for its 1.9 million customers in Montgomery and Prince George’s counties, citing nationwide supply chain disruptions tied in part to the ongoing conflict in the Middle East. According to WSSC Water, fluoride levels at its Potomac and Patuxent Water Filtration Plants will be lowered this afternoon from about 0.7 milligrams per liter to 0.4 milligrams per liter."

POLITICO POLL - 43% of Americans want fluoride out of their drinking water, a significant increase in awareness from years past. "Eliminating fluoride in water — something Kennedy has pushed for — has 67 percent MAHA support, and 43 percent support from the general public. Kennedy has made removing fluoride from water a cornerstone of his MAHA movement, based on some evidence linking high levels of the mineral to health risks like IQ loss in children and arthritis."

I’m sharing this because Tennesseans deserve to hear it. A lobbyist openly explains how they defeated the fluoride bill—by shifting the conversation to “local control.” He’s right about one thing: I’m proud to stand for MAHA. And yes—we’re bringing this back.

@WallStreetApes Delta Dental is the largest private funder of water fluoridation in the U.S., providing start up grants to cities through their nonprofit shell company @Arcorafound

WOW 🚨 Delta Dental is considered a nonprofit but the CEO skyrocketed her pay from $4.5 million per year all the way to $48 million over 4 years That’s $1 million dollars per month pay for one employee as a nonprofit “Delta Dental is considered a non-profit, and as such you can be their taxes online. So I got curious in their 2014 filing, the IRS requests for the organization's top accomplishments. Delta Dental reported that over 95% of claims electronic, online and paper were processed without any manual intervention. That means when your care is denied, there is less than 1 in 10 chance a human reviewed it — That same year, Delta dished out up to a 30% pay cut on the care that doctors deliver, and for a decade, they did not raise what they pay for your dental care by a single penny. Meanwhile, their CEO's salary skyrocketed. She went from 4.5 to $15 million a year. From 2014 to 2018, she made off with almost $48 million before leaving her position. That's a million dollars a month. Must be nice. And she's not even a clinician. She's a CPA. You don't have to be an accountant to do the math. Dr. Pay cuts stagnant reimbursements. They were never about saving patients money on premiums.”

"All HFS samples contained arsenic (4.9-56.0 ppm) or arsenic in addition to lead (10.3 ppm). Two NaF samples contained barium (13.3-18.0 ppm) instead. All HFS (212-415 ppm) and NaF (3312-3630 ppm) additives contained a surprising amount of aluminum." pubmed.ncbi.nlm.nih.gov/24999851/

POV: A bag of fluoridation chemicals was just delivered to your water department.

"The impact of fluoride on the immune homeostasis has cumulative and long-term effects, and may be related to the accumulation and migration of Tregs induced by fluoride in an inflammatory environment, mediated by cytokines." mdpi.com/2305-6304/13/2…

NEW STUDY - Fluoride can affect how well our immune system stays balanced, and these effects build up over time with long-term exposure. Long-term fluoride exposure might disrupt the normal balance of the immune system by interfering with "peacekeeper" immune cells (Tregs) through inflammatory signals. Over years, this could throw off immune homeostasis (our body's ability to keep the immune system properly regulated).