The one I used was www.nowleap.com from my GI's recommendation. I got my blood taken at the hospital and sent out by my GI to the company. I got a huge print-out explaining everything with charts, etc. They sent me a little laminated card like a buisness card with my main reactive foods. Since I have eliminated the foods, I have way less D and migraines. They have nutrionists who you work with over the phone. I was told my insurance would cover, then got the bill for $1,800 and insurance said they never authorized it. So if you are hoping the insurance will pay, I'd double or triple check that it was authorized before you do it. It was worth the money though anyways.
Diagnosed with Left-sided Ulcerative Colitis 1995 at 15, Tried: Prednisone, Rowasa & Hydrocort. Enemas, Proctofoam, Sulfasalazine, Asacol, Probiotics, Fish Oil, Canasa, Enotcort, Colazol, Anamantle, etc... had almost recto-vaginal fistula in 2004, put on Remicade, August 2007:Increased Remicade dosage-700mg every 6 weeks,diagnosed w/ Psoriatic Arthritis & Fibromyalgia Current meds:
Remicade 700mgs every 6 wks (had reaction, will start Humira Feb 11) Clorazepate, Proctofoam HC, Glucosamine 500, Vitamin B, Lomotil, Tylenol pm, Lyrica for Fibromyalgia started 1/17/08