My father's age is 52 he is suffering frm joint pain from a very long time He took thousands of medicine hundreds of therapy such as naturopathy physiotherapy as per x-ray there is gap b/w his knee joint he usd to walk 2 much when he was young n nvr focussed on his diet in d pace of earning asper doctor he is currently taking vit-d3 n calcium tablets ,dserin-gm,mypar-500 but is getting no relief from pain he doesn't wants any operation as he is the only earning member me n bro are studying yet .