Tue, Dec-05-06, 15:07
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Registered Member
Posts: 1,854
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Plan: My own
Stats: 194/000/150
BF:Not sure
Progress: 441%
Location: Bay Area
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Quote:
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Originally Posted by CandidCam
So my thyroid test results came back perfectly normal. TSH of 1.899 and free T4 of .8. Neither is even borderline high.
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Current TSH range 0.5 to 5.0 has been considered too wide, so many cases of mild hypothyrodism are missed. Many cuting edge Endos consider anything around or 2 to be a sign, and over 3 warranted for supplementing with thyroid hormone, especially om presence of symptoms.
As for free T4 the reference range 0.8 - 1.5 ng/dL, so if yours is in the same units, it is rather borderline low, which alone can indicate a problem. I don't know how old you are, but if you are middle age or close, it can be very well due to begining of perimenopause and thryoid problems arise during this time too, as well as overall hormonal imbalance.
I would find a good Endo and go for further testing: FT3, antibodies, uptake. If it is indeed your thyroid, it can cause other health issues beside weight gain. so it is worth cheking out and supplementing if needed.
I've also read that most cases of hypoT are due to iodine defficiency, so eating more iodine containing food alone can resolve your problem.
http://whfoods.org/genpage.php?tnam...=69#foodsources
Also, avoiding goitrogens that inhibit normal thyroid function, is good idea too. http://www.whfoods.com/genpage.php?tname=george&dbid=47
Quote:
B. TSH levels above 2
1. "NACB: Laboratory Support for the Diagnosis and Monitoring of Thyroid Disease: Published Guidelines" (US, 2002)...given the high prevalence of mild (subclinical) hypothyroidism in the general population, it is likely that the current upper limit of the population reference range is skewed by the inclusion of persons with occult thyroid dysfunction....
...In the future, it is likely that the upper limit of the serum TSH euthyroid reference range will be reduced to 2.5 mIU/L because >95% of rigorously screened normal euthyroid volunteers have serum TSH values between 0.4 and 2.5 mIU/L....
A serum TSH result between 0.5 and 2.0 mIU/L is generally considered the therapeutic target for a standard L-T4 replacement dose for primary hypothyroidism.
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http://www.altsupportthyroid.org/tsh/tshmedrefs1.php#2
HTH
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