Volunteer opportunity: Organizing Phoenix Rising articles
This section contains all the articles that have been published by Phoenix Rising over the years. As you will see if you browse here, some of the articles are outdated--either the research has been superseded or retracted or the article features an event or campaign that is now in...
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Optimal FREE T3 range science

Discussion in 'Thyroid Dysfunction' started by xebex, May 9, 2017.

  1. xebex


    Hi All,

    I have read that the optimal FT3 range should be in the top 25th percental of the "normal range".

    I've just had my FT3 tested, it comes up as 4.5 pmol/l with the lab range of 3.5 - 6.5. Doc, of course, says it's normal, but it is not in the top 25th percentile. So I'm concerned that it's too low, (it works out as about 2.9 pg/mL)

    Can anyone point me to some scientific articles of why my FT3 needs to be in the top 25th percentile that I can show my doc? I'm pretty sure he'll ignore all the articles I've found so far.

    Hyperflux and ChrisD like this.

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