I tried Felidae too for Mitzi and at first she loved it - oh joy, something new - but within a day she was ignoring it and begging for her old food. She seems to be thriving on the Science Diet Light Hairball formula - her fur looks better and she's actually getting to be a little lighter hairball She's still my roly-poly girly girl, though, and probably always will be a bit on the "fluffy" side.

P.S. You'll probably get more response in the Cat section.