Jodie had IBD, a pancreatic insufficiency and gluten intolerance. She ate the following for around 18 months and had the best coat of the bunch:
5# boiled potatos with skin, mashed
2# green beans, put in processor
3# or so of boiled meat, beef or chicken
2C of rice made with 4C of water
I added fish oil and sterlized calcium to each feeding.
Isaac had problems for 2 years before I finally did allergy tests on him. He is allergic to peas, turkey & lamb in the food area. Of course, I had been feeding him turkey and not chicken..... He started NB duck & potato and did very well on it.