Ambush Master, I take the MSM also for same reason.
small detail but when I had my knee worked on the knee specialist surgeon said it was going to need replacing soon. That was 6 years ago now and it continues to get better, not perfect but much better. Again I can't prove anything but note that like AM, my hands and elbow guit hurting too.
When logging I would on occasion load a full 55 gallon drum of oil from the ground into the back of a pickup by grabbing both rims of the barrel and just picking it up and putting it in.
(edit to add- DAMN!! 
) I'm surprised I can even move today after doing knucklehead things like that.
I don't dare quit the supplements.