Tweetthe best way i can answer this question is that healthy and higher levels of testosterone, combined with exercise and proper diet, is better than a low test level when it comes to preserving muscle when trying to drop bf.
bc - believe me, if your test level is low, your body (no matter what) will chomp away at the muscle b4 its lets go of the fat. it's our body's self defense mechanism (twisted and horrible as it may be).