However, in order to try to eliminate food allergies (if she has them), you would have to feed her only a protein source that she has never been exposed to before. So, if she has never eaten
lamb before, try giving her Baby Food
lamb since it may be difficult to find lamb canned cat food, unless you get a prescription from your vet for lamb based hypoallergenic canned food. Try it for at least 4 to 6 weeks.