University of Nottingham Mar 12 2026 A new study has found that a prebiotic fiber supplement reduced pain, improved grip strength, and lowered pain sensitivity in people with knee osteoarthritis (OA) - with far fewer dropouts than a digital physiotherapy programme. The INSPIRE clinical trial, led by experts at the University of Nottingham, showed that taking a daily supplement of inulin- a natural dietary fiber found in chicory root, Jerusalem artichokes and other vegetables - significantly