Who here who competes does it, has done it and with what results good or bad?
I know it aids fullness however does it create a blurring of separation? If so why does it do that? increased sodium retention?
cheers...
I will explain this;
Insulin does not recognize what is in the blood stream, it simply removes all nutrients from the blood stream into the muscle.
So instead of your muscle being gorged with nutrients such as amino acids and glycogen it gets everything that is in the blood at the time, including fats. This is how anabolic it is, very powerful.
So through time (years) and heavy dosing with insulin the muscle builds up visceral fat within the muscle.
Picture a lean steak then picture a steak with streaks of fat within the meat, this is what happens to your muscles over the years with insulin abuse.
So even though your muscle is shredded and you have very low bodyfat, the muscle still has fat (visceral fat) within the meat that does not come off from dieting or being shredded.
The muscle in some extreme cases then loses some shape, some hardness and separation. In some case the fat build up surrounding the muscle like fat on the edges of a steak, when this happens, muscle groups become less separated and your lines become more shallow and not as deep.