The last two posts have commented largely on the effects of very well known osteoarthritis supplements: glucosamine/chondroitin and omega 3 fatty acids. Click on the links to read the full discourse. In my searches for objective, high-quality evidence on supplements, I came to the conclusion that it's pretty sparse. Many studies are either performed or funded by supplement companies or are just not that robust! Aside from a supplement called diacerein, most supplements are