Do you think magnesium chloride might do the trick? I filter out fluorides with an alumina filter. I use that and a carbon block filter
gar On Wed, Jul 21, 2010 at 8:26 PM, Norton, Steve <[email protected]>wrote: > Dan, > > Magnesium may be what you are looking for. It appears that if you add a > small amount of a soluble magnesium to water and agitate, it will form > an insoluble compound with the fluoride and greatly reduce the > bioavailability of the fluoride. I didn't mention this possibility > before because I kept seeing conflicting information in the studies. But > I think that given the study I posted below, that magnesium is a good > approach to use with drinking water. > > - Steve N > > > -----Original Message----- > From: Norton, Steve [mailto:[email protected]] > Sent: Wednesday, July 21, 2010 1:26 PM > To: [email protected] > Subject: EXTERNAL:RE: CS>Debunking... > > > There may be some substance to Prill beads reducing the absorption of > fluoride by forming an insoluble complex with the fluoride. But the > science isn't completely understood. See below. > > - Steve N > > Influence of Dietary Magnesium on Fluoride Bioavailability in the Rat > http://jn.nutrition.org/cgi/reprint/117/3/496.pdf > > "Several observations suggest that the magnesium content of a diet may > influence food fluoride absorption. Magnesium and fluoride, for example, > form an insoluble complex in vitro (6). Simultaneous administration of > magnesium and fluoride by gastric intubation has been shown to > significantly reduce skeletal > uptake of fluoride by growing rats (7, 8), which may explain why high > dietary magnesium appears to ameliorate fluorosis in guinea pigs (9). On > the other hand, Spencer et al. (10) were unable to demonstrate a > significant effect of orally administered magnesium oxide on either > fecal or urinary fluoride excretion in human volunteers. Factors that > may account for this apparent discrepancy between animal and human > studies include the age of the test subject, level and chemical form of > magnesium and route of administration of fluoride and magnesium. In the > human study, for example, subjects were adults, whereas studies of the > magnesium and fluoride relationship in rats occurred during a period of > rapid growth. Animal studies involving gastric intubation utilized > water-soluble magnesium chloride and the magnesium and fluoride were > administered together, whereas in the human study magnesium was > insoluble magnesium oxide and the magnesium and fluoride were not > simultaneously present in the diet." > > > >
