I would recommend a probiotic. I take Align but there are many here who use other brands, etc. It has helped keep me "regular" and I have similar conditions that you have - GERD, hiatal hernia and UC. I can't eat anything raw but do eat well cooked veggies and fruit.
Senior - New diagnosed with proctosigmoiditis - 6/2008 Tried, Colozal, steroid enemas, etc. - started working but severe side effects occurred. No mesalamines!!
Started on prednisone Feb.7, 2009 - tapering to 20 mg. - upped prenisone to 25mg. on my own (bleeding returned) - 6MP - 50 mg. 2/28/2009
75mg. 6 MP added on 4/8/2009 - waiting for CBC and Prometheus tests
Probiotic Align, Prilosec for GERD, Gas-X, vitamins, Calcium/D
Tylenol for knees and arthritis.