Guest guest Posted August 30, 2010 Report Share Posted August 30, 2010 My understanding is that a ratio of under 20 means that the RT3 problem is bad enough to be harmful to health. Sorry I can't find the exact post, but if I remember correctly, Moderator said " RT3 can not be too low " . > > Is there an ideal range for RT3 or do you just look for the ratio to FT3 to be 20 or greater? > Quote Link to comment Share on other sites More sharing options...
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