I have two cats, aged 6 and 2. Unfortunately, both of them sustained injuries to one of their legs which means arthritis is now developing. As they are so young, I really want to give them the best things that will help them the most. Any kind of food, supplements, medication etc? They aren’t at the stage where they need medication from the vet right now, but want to keep them as comfortable as possible until that point. What have people tried that you really recommend?