My cats eat Iams Hairball Light. I tried Nutro (I mixed hairball with light) and Bassett hated it. I've never seen a Science Diet Hairball light - does this exist? Although I know all the "evils" of Iams, I did ask my vet about it and the cats also really like the taste. I mix that with a Canadian food called "Medi-Cal" reducing formula (Bassett and Nutmeg are both tubby, and Tilly is just right, so she doens't need to gain!) and that mix seems to work best for us.