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Fluoride & IQ: The 7 “No Effect” Studies
While 49 studies have found an association between fluoride and IQ, the following seven studies did not find this association. Several points bear consideration about these studies: First, a new study from New Zealand (Broadbent 2014) reports no association between fluoridation and IQ. As recognized by Dr. Philippe Grandjean, there are several glaring problems with this study, […]
NRC (2006): Fluoride’s Effect on Glucose Metabolism
This section on Diabetes includes: • Fluoride & Impaired Glucose Tolerance • Fluoride & Insulin • Fluoride Sensitivity Among Diabetics • Fluoridated Water Causes Severe Dental Fluorosis in Children with Diabetes Insipidus • NRC (2006): Fluoride’s Effect on Glucose Metabolism The following discussion is from pages 258-260 of the NRC’s report’s “Fluoride in Drinking Water: A […]
The Iowa Fluoride Study: Fluoride, Teeth, and Developing Bone
In the early 1990s, the National Institutes of Health (NIH) issued a large grant to University of Iowa researchers to investigate the relationship between total daily fluoride intake (from all sources) and several health outcomes of interest, namely: tooth decay, dental fluorosis, and bone health. Known as the “Iowa Fluoride Study,” the researchers monitored the fluoride […]
Populations Vulnerable to Fluoride Toxicity
One of the key problems with water fluoridation is that water is for everybody, but fluoride is not. Like virtually all other drugs, a given dose of fluoride can be safe for one person but harmful to another. Indeed, a vast body of fluoride research clearly demonstrates that certain subgroups in the population are particularly […]
Community Fluorosis Index (CFI)
The current Community Fluorosis Index for U.S. adolescents as a whole (from both fluoridated and non-fluoridated areas) is roughly 5 times higher than the CFI health authorities predicted for fluoridated areas when fluoridation first began. It is also higher than the CFI that the NIDR found in fluoridated areas back in the 1980s. It is readily apparent, therefore, that children are ingesting far more fluoride than was the case in the 1950s, and even as recently as the 1980s.
Armfield & Spencer (2004): Consumption of Nonpublic water: Implications for Children’s Caries Experience
In this 2004 study by pro-fluoridation researchers in Australia, children with lifetime exposure to fluoridated water had no reduction in tooth decay of the permanent teeth when compared to children who had never lived in fluoridated communities.
Water Fluoridation & the Quality of Evidence Problem
Advocates of fluoridating water often state that there “thousands” of studies that prove fluoridation to be both safe and effective. In 2000, however, a systematic review of the literature commissioned by the British Government (“York Review”) found that, under current standards for what constitutes good medical evidence, there has not yet been a single high-quality […]
Fluoride Enhances Toxicity of Beryllium
Occupational exposure to beryllium is well-documented to put workers’ health at risk. The two principal targets of beryllium poisoning are the respiratory system and the skin. Of all beryllium compounds, beryllium fluoride complexes (including beryllium fluoride and beryllium oxyfluoride) appear to be the most toxic. As shown below, studies dating back to the 1930s have […]
Respiratory Risks from Occupational Fluoride Exposure
Starting in the 1930s, scientists have observed that workers exposed to airborne fluorides suffer from an elevated rate of respiratory disorders. For over 50 years, however, US government and industry scientists made repeated assurances that the allowable level of fluoride dusts and gases in industrial workplaces would not cause any ill effect to respiratory function. […]
Tea Intake Is a Risk Factor for Skeletal Fluorosis
A number of recent studies have found that heavy tea drinkers can develop skeletal fluorosis – a bone disease caused by excessive intake of fluoride.