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Which is best and which should I take? What is the difference?
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T3 Is what all my buddys have ran,
An advantage of t3 over t4 is the lack of dependence upon the liver enzyme responsible for t4/t-3 conversion.During diet restriction periods the liver naturally decreases the liver enzyme levels as a control measure to prevent metabolic rate induced starvation.Just as the liver increases production of this enzyme in response to elevated calorie intake it also reduces levels in response to decreased calorie intake.Remember that T4/l-thyroxine is only 20%as active as T3/ triiodothyronine.
As I read your post I was reading about this in chemical muscle enhancement.hope this helped
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