Tag: bone
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A Second Look at Fluoride Exposure and Hip Fractures
In critiquing the York Review I spent a considerable time reading the literature on Hip Fractures and exposure to fluoride. I thought readers would find it helpful to have an up-to-date list of the studies published since 1990. While the evidence from these human epidemiological studies is mixed, when the issue is examined in the context of […]
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Study finds link between tea, fluoride, and weak bones
The authors identified 5 patients in their practice who developed skeletal fluorosis as a consequence of drinking tea (primarily darjeeling tea) over a course of 10 to 25 years. The skeletal fluorosis in these patients was the osteomalacic variety of the disease, in which the bones become softened and weak. As a result of the “fluoride-related osteomalacia”, the patients suffered “spontaneous bone fractures” where their bones fractured without external trauma.
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Latest Submission to NRC Panel on Fluoride/Bone
Based on the following data, it is clear that the current MCL can not be relied on to protect against fluoride-induced bone damage, including: reduced bone strength, reduced bone density, increased mineralization defects, exacerbation of bone disease in people with kidney disease, and skeletal fluorosis of varying severity.
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Recent Study on Fluoride & Elk Makes Headlines
As some of you may know, a recent study on fluoride and elk has been attracting quite a bit of media attention recently. The study, published in the journal Ecosystems by scientists at Montana State University, looked at the effects of excess fluoride on the lifespan of elk in Yellowstone National Park.
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Fluoride & Osteocytes
The osteocyte is a type of bone cell which is increasingly believed to play an important role in repairing defects that arise in bone, thereby maintaining the bone’s structural integrity. Because osteocytes are engulfed in fluoride-rich bone mineral and help resorb the bone as part of the remodeling process, they can be exposed to high […]
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Fluoride Exposure Increases Metabolic Requirement for Calcium & Vitamin D
It is well known that individuals with nutrient deficiencies are more susceptible to fluoride toxicity, including fluoride’s bone effects. As discussed in the following studies, fluoride increases the skeleton’s need for calcium (and vitamin D) by increasing the amount of unmineralized tissue (osteoid) in the bone. When insufficient calcium and vitamin D is available to […]
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Fluoride in Water & Bone Density
Interest in fluoride’s affect on bone density stems back to the mid-twentieth century, when scientists first started using fluoride as a drug to build bone mass in patients with osteoporosis. From the 1960s to the 1990s, numerous clinical trials examined the effect of high daily doses of fluoride (20-34 mg/day) on bone density and fracture […]
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Fluoride in Water & Bone Fracture
Current epidemiological evidence indicates that the margin of safety between the level of fluoride in water that does, and does not, increase the risk of fracture is insufficiently large to protect all members of society from fluoride-induced damage to bone.
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Fluoride & Rickets
One of fluoride’s most well-defined effects on bone tissue is it’s ability to increase the osteoid (unmineralized bone) content of bone. When bones have too much osteoid, they become soft and prone to fracture — a condition known as osteomalacia. When osteomalacia develops during childhood, it is called “rickets.” The potential for fluoride to cause rickets was first […]
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In Vitro Studies on Fluoride & Bone Strength
The “in vitro” research on fluoride and bone strength confirms what has repeatedly been found in animal and human studies: the more fluoride a bone has, the weaker the bone becomes. In an in vitro bone study, the researcher directly exposes a human or animal bone to a fluoride solution and then studies the effects […]