Afraid I don't have any answers for you, but I've been considering some sort of Glucosamine product too. I think my neck is slowly falling apart sometimes...
From what I can tell, Glucosamine sulfate would be the preferred form. Chondroitin might help by being in the same product, but I don't think there is any data showing chondroitin alone being of any benefit. And there are also potential issues (albeit probably minor) with glucosamine possibly raising fasting glucose levels.
As for MSM, it's intriguing. Is there any negative data or health risks from MSM? Any drug interactions?
I've also seen supposed joint benefits listed for SAM-e, Astaxanthin and silicon (such as Biosil), but I don't know if those are just marketing claims or if they have actual science behind them.
Edited by nameless, 17 April 2009 - 11:55 PM.