A report from the CDC will close the book on whether the popular supplements glucosamine and chondroitin actually help arthritis sufferers. Research of 10 placebo-controlled trials over a two year period conclude that the supplements used alone or in combination do not result in a relevant reduction of joint pain, nor do they affect joint-space narrowing. It is also believed that future trials will not likely show a clinincally relevant benefit of any of the evaluated supplements. Arthritis sufferers may want to consider the alternative treatment that science has not yet been able to debunk - such as dietary changes and exercise.
~ University of Bern, Switzerland, 2010