Does Coffee Prevent The Absorption Of Fluoride?

Discussion in 'Coffee' started by OrangeJuiceManiac, Jan 29, 2013.

  1. OrangeJuiceManiac

    OrangeJuiceManiac Member

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    i know that coffee is chelator and prevents the absorption of iron....

    i've read that magnesium and calcium prevent the absorption of fluoride

    it is quite inconvenient to not be able to have a cup of coffee outside my house because i am concerned about fluoride

    i may have answered my own question, but would coffee and some milk be sufficient to prevent the absorption of fluoride in tap water?
     
  2. Amazoniac

    Amazoniac Member

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  3. sladerunner69

    sladerunner69 Member

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    Yes and no, but only just so.
     
  4. x-ray peat

    x-ray peat Member

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    somebody mentioned that boron removes fluoride from the body and I imagine if you drop a little in your coffee it would bind up the fluoride ions.
     
  5. Travis

    Travis Member

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    I really got my hopes up with this study: Removal of Fluoride Ions by Absorption onto Carbonaceous Materials Produced from Coffee Grounds

    They modified coffee grounds with calcium and baked them (carbonized) further to increase the surface area. They retained unmodified spent coffee grounds for comparative purposes.

    This was a serious study, and they took electron micrographs of the coffee grounds:
    coffee.png

    However, they noticed that unmodified coffee grounds did not remove the fluoride ion.


    coffee2.png
    As you can see, unmodified coffee grounds (o) do not appear on this chart and are ostensibly all laid directly on the x-axis.

    This is somewhat suspicious. One would expect some variation in the measurements had they actually took them.

    These people here report a fluoride concentration of 0.17 ± 0.01 µg/g in brewed coffee: Determination of Fluoride in Various Samples and Some Infusions Using a Fluoride Selective Electrode

    Micrograms per gram is synonymous with parts per million. This is less than city water.

    This article here presents us with concentrations of the beans themselves:

    coffee3.png

    So coffee does not seem particularly high in fluoride although I did see one article that gave that impression.

    I cannot find a definite answer. There are too few studies on this. Perhaps a really dark roast will be able to remove some fluoride from water.
     
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