In reply to Chris_Mellor:
Hi Chris,
Yes, I've been diagnosed with osteo-arthritis in both my hands, my left foot and both knees. Thankfully, a blood test ruled out rheumatoid arthritis, as that is far worse and gradually gets worse. I had x-rays to confirm it.
I also had scans of both knees a few years ago which confirmed osteo-arthritis, i.e. a thinning of the cartilage in the knee, which resulted in fluid on the knee after a day on the hill. To combat that I started taking supplements; turmeric with black pepper as well as glucosamine with chondroitin and calcium. After a month of that I've never had a problem with my knees since. However, it hasn't helped with my feet or fingers.
Foot problems: pain in the 5th metatarsal on my left foot.
Hands: finger joints, probably to too much climbing doing finger traverses on indoor walls and too much weight training.
I've given up climbing and weights and am now enjoying lots of days on the hill in the Lakes and Scotland. Thank God for glucosamine and turmeric. Turmeric is an anti-inflammatory and glucosamine is supposed to regenerate cartilage. I'm no expert, but all I can say is it's seemed to have worked for my knees.
It probably doesn't completely answer your question, but I hope it gives you some help.
Post edited at 22:13