Do Two Popular Arthritis Supplements Work? Study Raises More Questions Than it Answers

The National Institutes of Health just spent $12.5 million on a study to find out whether two of the hottest-selling arthritis supplements, glucosamine and chondroitin sulfate, can ease osteoarthritis pain. However, because of limitations in the study design, $12.5 million later, that question still remains unanswered.