Chondroitin sulfate - a naturally existing substance in joint cartilage that is believed to draw fluid into the cartilage. Chondroitin is often taken in supplement form along with glucosamine as a treatment for osteoarthritis. See the "glucosamine and chondroitin sulfate" section under Complementary and Alternative Therapies for more information.
Seen this and thought of a few of you that have said you have arthritis issues too.
So I figured I would pass it on.