Your question got me to thinking, so I did a little searching. I found this article that makes some pretty good claims about glucosamine and chondroitin, including that it significantly increases muscle growth. I don't know about that for sure, but I will say this-I trained for years at a time when I was younger and never got even close to the strength I have gained in just the ten months I have been training while taking these two. I don't know if they have something to do with it or not. This isn't a bad read, though- http://www.bodybuilding.com/fun/gastelu4.htm
"Why yes, yes I am on a cutting diet. If you touch my food, I WILL cut you."
"We should ban treadmills instead of guns. I have never been harmed by a gun while treadmills, on the other hand, routinely make me feel like I am dying."
Gym pr's- bench 330, DL 405, squat 450
Meet pr's- bench 350, do 425, squat tbd