from my understanding when a person uses excessive HGH, the cell receptors that get saturated first are those of the skeletal muscles...
after they have been saturated then the internal organs get binded on to, which explains the GH gut...
all the food that is consumed causes the body a "need" to grow the internal organs so that they can "handle" the food
just a theory that I have read, no science to back this up-that I'm aware of