I had the food sensitivity testing ($300) done by the Naturopath and it was a huge help to me. I would have probably not been very good about keeping the diary, and figuring out when what affected me. He also introduced me to probiotics (before I discovered this message board). B-12 shots were of help, too.
He told me what chemistry tests to have done by my regular doc, so it would be covered by insurance: It was Chem-17 screen and a test for Vitamin D deficiency. Ask about doing those tests with your regular doc.
There was a thread last week about the pros and cons. Know when they've done for you all they can, and don't just automatically purchase everything they want to sell you. But try some things. That's my advice.
49 year old female attorney, diagnosed UC/pancolitis 1985, no surgery but much suffering.
Asacol/5ASA 6x400 mg maintenance for 20+ years; use prednisone & Rowasa for flares.
August 2008 sought care of naturopathic doctor. Food sensitivity test showed wheat/gluten, other intolerances; started diet without gluten, soy, dairy, tomato etc. Replete$$ probiotic powder, then Forte, now a stronger one (50 billion). Doing much better, but still having some bad days.