Yes, insulin does have its place in modern bodybuilding. Why? Because so many guys are mega-dosing pharma hgh for extended periods of time that you must use insulin to protect the pancreas. It helps prevent it from burning out! In addition, the insulin resistance associated with HGH abuse can severely limit the GLUT4 protein and its ability to assist in glucose transport into skeletal muscle... so, again... need the insulin here.
Do you need to take exogenous insulin to spike the insulin signaling cascade? No, you dont because heavy and intense training on its own increases the protein content of GLUT4, insulin receptor, glycogen synthase (GS), and GS total activity. All of which benefit muscular growth.
If there was no HGH, then maybe there would be no insulin use.
