Don’t Throw Away the Copper Wristband Yet

Two popular supplements used to fight arthritis and joint pain, glucosamine and chondroitin sulphate, do not seem to work any better than placebo to slow the loss of knee cartilage in osteoarthritis. However, the researchers behind the work say they had trouble interpreting their results because they had previously found that patients who took placebos had a “clinically important reduction” in loss of cartilage.

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