Our vet thinks my oldest male has IBD and that he is allergic to chicken and beef, which is found in most cat foods. We've been using Natural Balance LID Duck food with success, feeding mostly wet, but he does get dry if we are gone for the weekend, or as a treat (he loves the dry but I think he has a bit of trouble digesting it as he seems to have litter box issues after having a lot of dry). We've branched out to the Natural Balance Venison which he likes, and I also have some Salmon to try. We actually have both adult cats on the Natural Balance, strictly for ease of feeding (they eat out of each other's dishes and I hated keeping him in the basement by himself for feeding times with separate foods). While the Natural Balance is doing well, its also super pricey to feed two cats that full time. There don't seem to be many options for foods without chicken in them though, or beef. Any ideas a cheaper brand to try? Or cheaper place to order? I've been ordering the duck either through wag.com, or petsmartdirect.com when I can order enough to get free shipping, or some kind of discount.