Osteoarthritis affects about ten million Britons. From diet swaps to supplements that work and exercises to ease the agony, here is the experts' guide to managing the pain.
When keen runner Jon Reeves, 54, began struggling to get down the stairs in the morning, he knew his knee pain was more than just sports injuries.
The father of two from Oxfordshire had gone from daily runs and regular badminton matches to strapping ... [11745 chars]

