Well, how do you explain the extremely lean bodybuilders then, especially since you say many of them are severely insulin resistant? With the use of GH they stay much leaner throughout the off-season nowadays, even despite using lots of insulin too.
GH leads to higher insulin levels. Doesn't translate to higher bodyfat, so apparently the increase in insulin isn't enough to override the fat burning effects. Research shows that if you block the raise in FFA's you improve insulin sensitivity. The fat burning effects of GH are what leads to insulin resistance.
Other diet drugs used by bodybuilders can cause insulin resistance as well: the beta agonists and T3.
You are also looking at sedentary type II diabetics, not hard training bodybuilders. Bodybuilders make their muscles sensitive constantly by training hard. This will help drive glucose into muscle preferentially. Mild insulin resistance IMO is correlated with an extremely lean bodybuilder look - a disease state like actual type II diabetes is another matter.
I'm really not trying to argue with you, I'm trying to present things in a bit of a different light because I think we are all missing the boat to a degree with some of the stuff posted on the internet now days. I'm not aware of any reasonable studies on the exact composition of "GH gut".
My understanding is that there should really be different considerations on what is defined as "fat". For instance there is subcutaneous vs peripheral vs central vs visceral adipodisity. There is some relatively new thought that fat isn't just fat. This goes so far as for some individuals to label fat as an "organ" not just a cellular type or a tissue type. Stop and think of the fat people we all know. I'm sure we can think of that one individual with rolls of arm fat but who don't have a huge abdomen relative to body size---this would be an individual with a high amount of subcutaneous fat or a predisposition for an individual to accumulate fat in that region of their body. This may be catagorized as "pheripheral fat" with individuals who carry a large amount of "limb" fat---think of the women you know with saddle bags or floppy fat legs, yet they are actually relatively lean (relatively).
Central adipodisity shouldn't be confused with visceral adipodisity, but they are often interrelated. Central adipodisity is the classic "bug guy" with a gut that we can all think of examples of also. Individuals like this tend to carry quite a bit of weight in the abdomen, but have very lean and even vascular arms and legs. A contributing factor to this are individuals with visceral adipodisity, where they carry a large amount of fat inside of their abdomenal cavity---which is what i'm talking about with bodbuilders. They are lean peripherally, but thats not to say that they don't have a HUGE amount of omental fat secondary to the drug use.
