id say TREN A is supposed to be an awsome builder of lean gains and it is the steroid with the best bennifit of makeing your body useing absorb more nutrients and fuel from your diet than anyother one i cant wait for my next cycle to use this shit.... in other words if you eat 1lb of meat on test alone lets say use absorb 75% of it and with tren its like 90% just an example i havent really found any reall measurments of that though....