One of the things you can also do is feeding enrichement. Instead of just giving food in a bowl, make the cat search for it (best done with dry food of course). They do that often in zoos with tigers and lions for the same reasons. For instance I've seen a piramid build with the carboard rolls of toilet rolls. Put some dry food inside and show the cat how to get it out using her paw. Eggboxes can also be used for this.