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Vliet did not like porcine either..in fact, took me off Armour and put me on

Synthroid..didn't work..AGAIN..

I am insulin resistant, NOT overweight, with PP BGs in the

180's-250's..Progesterone may have caused or complicated peri and a severe

Graves episode didn't help...BGs seem to stabilize with proper thyroid

supplementation, diet, exercise..will definitely worsen in the face of estrogen

(with some insulin autoantibodies..so have some features of Type 1 AND Type

2)and OVERsupplementation of thyroid..have studied this ad nauseum..and tracked

ad nauseum..Yes, insulin resistance/diabetes can have many endocrinological

causes..including hyPERthyroidism, Cushing's, and various types of hormone

secreting tumors or abnormalities.

Over all, I have done better on porcine..Schwarbein believes that porcine (T3)

raises insulin to inappropriate levels, thereby creating possible insulin

resistance if dose is high enough/long enough..Obviously T3 all by itself

doesn't cause IR, we all produce some amount of T3 whether endogenous or

exogenous...

Total T3 can be increased, as can Reverse T3 with some BHRT regimens..another

good reason to measure Total T3 in addition to free T3 and Free T4..

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> It can be the case that porcine T-3 can contribute to insulin resistance, but

usually does not. My sister is grossly overweight and has insulin resistance,

thought to be exacerbated by the T3 but did not cause it. A number of factors

cause insulin resistance, and natural (porcine) thyroid is usually NOT the

culprit. I believe that T3 itself is more often linked with estrogen, whether

it be natural or synthetic. Estrogen can also contribute to blood sugar and

insulin complications. It is difficult if not imposssible to sort this all out,

and maybe Dr. S is eliminating all things that can be implicated in insulin

resistance, but a blanket statement against using porcine thyroid for this

reason doesn't seem appropriate. Insulin resistance is a very complicated matter

and brings into question so many hormones created by all the glands in the

endocrine system. Plus, diet and exercise has so much to do with it as well.

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> I believe that Armour, ERFA and most (if not ALL) natural thyroid is porcine

in origin. My sis has not stopped her compounded natural T3 - she had been on

Armour previously, before all the shortages began. I have been on Armour or

other sources of natural thyroid for about 20 years, and another 7 years before

that, with nearly 20 years between the thryoid use.. What caused me to become

insulin resistant for a short time was a over dosing of progesterone, which

upset my cortisol and other hormonal balances.

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> Insulin resistance is far more complicated than eliminating things that MAY

(or may not) contribute to it. The problem with using a very good, prominent

Dr. is that manmy times they include their pet peeves or beliefs in the

protocols they prescribe for patients.

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> Astrodiana

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