My dog has allergies to rice and maize (corn) so I am looking for a cereal free dry dog food. He also cant have beef, pork, lamb and chicken. The cereal free dry dog foods that i have come across are either turkey and vegetable or lamb and vegetable(which he cant have). He's curently on james wellbeloved turkey and vegetable and he has also had the fish and vegetable. Can anyone tell me of other cereal free brands that have another protien besides turkey and lamb. Id like to give him duck, but i havent come across duck and vegetable. I know he really likes it because prior to feeding him JWB he was on wainwrights duck and rice. Ive gone through the dry dog food index, but doesnt cover cereal free dry dog food. ive looked at fish4dogs, but id like to give him a variety, so looking for a brand with turkey duck and fish if possible. is it ok to feed him from two different brands?