Pain NewsSTUDY: Chondroitin + Glucosamine Sulfate No Better Than Placebo for People with Knee Osteoarthritis- Pain News Posted on 04/02/202613/06/2026 by Pain Management ClinicStudy finds Chondroitin and Glucosamine sulfate are no better than placebo for knee osteoarthritis pain. Read the latest research findings now. Continue reading →