This document discusses arthritis, risk factors, and prevention strategies. It notes that while some claim certain foods can cause or relieve arthritis, this has not been proven. Maintaining a healthy weight is important to reduce arthritis risk, as excess weight increases risk for osteoarthritis in the knees and other joints. The CDC implements programs to better understand and prevent arthritis through surveillance, education, and promoting healthy lifestyles. Physical activity and nutrition play key roles in arthritis prevention.