well yeh that's a popular thing, and i am on prescribed hgh, but my thyroid is also super low which is my main reason for using it. i don't know whether the t4/hgh thing is super based on science or more of a bro thing. but from what i've read hgh slows down the conversion of t3-t4. here is something i found somewhere else, again just pasting this and far from an expert
"Upon taking GH and increasing levels due to a exogenous source it will increase the fat burning properties via vast mechanisms...However, this effect is amplified by the activity through the T3 hormone...This effect is rather unique, in the fashion by the enzyme 5'(prime) Diedinasa is significantly/drastically enhanced..The process now amplifies the conversion ratio within stored T4 into active T3, thus more bio-active T3 in circulation, inducing a fold in the fat burning rate..Unfortunately, the endocrine has a limited amount or T4, in storage and total..It's gone before you know it!
Whats does this entirely mean? If the ratio is being used faster then production, due to the increased conversion/activity, there is now a deficiency..Supply and demand!
This is were the suggestion concerning the protocol of adding T4 through an exogenous channel is recommended..Now at some point the level of T4 will go extremely low effecting conversion,thus interfering with the fat burning process by slowing down, decreasing..Now Im not stating that GH will no long possess fat burning properties but like anything else, the effects will begin to halt..
The hack to this situation to continue and restore the feeding process with GH boosting fat burning by implementing the addition is T4, at a low to moderate dose (you dont need much).."
