Selenium: Low selenium linked to osteoarthritis risk
People with low levels of selenium in their bodies face a higher risk of knee osteoarthritis, according to researchers from University of North Carolina at Chapel Hill Thurston Arthritis Center. The study compared x-ray evidence of knee osteoarthritis in 940 study participants with how much selenium was in their systems. Study participants who had less of the trace mineral than normal in their systems faced a higher risk of the osteoarthritis in one or both knees.

Future studies may focus on whether selenium supplements may help reduce the risk of osteoarthritis. Selenium can be toxic, so supplements are not being recommended. A healthy diet is recommended. According to the American College of Rheumatology, "food distribution patterns in the U.S. ensure most people get the low doses of selenium needed, particularly if they eat a variety of foods from several sources."