Popular supplements taken to counter joint pain are no better than placebo, Swiss research has found.
Glucosamine and chondroitin, taken individually or in combination, were found to have no effect on reducing pain caused by osteoarthritis in hips and knees.
Researchers reviewed 10 trials involving 3,803 patients.
They said: “Compared with placebo, glucosamine, chondroitin, and their combination do not reduce joint pain or have an impact on narrowing of joint space. Health authorities…. should not cover the costs of these preparations.”