can you still build LBM and get big if your natural IGF levels are low?

[dale]

if not, does that mean if you are packing a lot of LBM you are producing a decent amount of IGF?

[bluethunder]

Yes, I you can still gain LBM with low IGF-1 levels. Building lean muscles takes many factors into play and IGF is only part of the equation. Perhaps it may be slower but it has nothing to do with free test levels which is also critical.