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Are fluoride levels in drinking water associated with hypothyroidism prevalence in England? A large observational study of GP practice data and fluoride levels in drinking water
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  • Published on:
    Misleading representation of SCHER Report
    • John F Beal, Hon Senior Lecturer in Dental Public Health
    • Other Contributors:
      • Michael A Lennon

    Sirs, Peckham et al's selective reporting of the findings of the SCHER report (2011) risks giving readers of your journal a highly misleading interpretation of data on the fluoride intake of children in areas supplied with water containing 1 mg/l of fluoride.

    Careful analysis of the full detail of the SCHER report (2011) shows that 6 to 12 year olds will not exceed the recommended upper limit (UL) of 2.5 mg per...

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    Conflict of Interest:
    None declared.
  • Published on:
    A missed opportunity? Fluoridation and hypothyroidism - correlation or causation.

    The analysis of data on the prevalence of hypothyroidism in areas with different concentrations of fluoride in the public drinking water supplies, by workers at the University of Kent,[1] is interesting but by no means conclusive. The authors rightly emphasise that their findings do not prove that fluoridation causes people to develop the condition,but only that there is a clear correlation. In fact this study raises m...

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    Conflict of Interest:
    None declared.
  • Published on:
    a cup of tea

    It appears somewhat bizarre that authorities have ignored a widely consumed source of fluoride from tea although insisting on community water fluoridation (CWF) to reduce dental decay. Notably, black tea in commercial teabags contains significant levels of fluoride. This is especially so when sourced from Kenya with volcanic soils compounded by fluoride from superphosphate fertilisers. Mechanical harvesting then includes...

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    Conflict of Interest:
    None declared.