ScienceDaily (Feb. 5, 2009) — Osteoarthritis (OA) causes disability and is a major public health problem. A new study examined the effect of chondroitins 4 and 6 sulfate (CS) on OA progression and symptoms. CS, unlike other chondroitin sulfate products sold as dietary supplements in the U.S., has been approved as a prescription symptomatic slow acting drug for OA in many European countries.
