Yes it will cutt into your muscles horrible idea. havn't you ever seen a meth or coke addict? they are always bone thin with no muscle. worst idea you could think of. it will also raise your blood pressure and heart rate and you could have a heart attack when working out. it does not take long to get hooked on either drug. plus a bodybuilder needs to sleep drugs like cocaine and meth are bound to keep you up if you do sleep you are not getting good quality rem sleep. even if you just use it for a few days to a week its not a good idea. just stick to tren acetate and do more cardio. their are many other ways to lose fat without using coke or meth. if you have trouble doin g cardiio when you are on tren then before you go into your cycle do alot of cardio and get lean then start your cycle. if your still holding water use a diuretic , the HGH and tren should shed most of the fat along with some cardio.