After several years without a diagnosis, I got one of collagenous
colitis. The triggers for me are certain foods: dairy, grains, some vegetables, fruits, some meats, lentils...many, many foods. I am fortunate enough to have figured out which foods cause reaction, which is good. About 6 months ago, I was finally diagnosed and started taking cyclosporine 100 mg 2x day. After a week, I could eat like a normal person—just about anything I wanted. It was great, it even allowed me to travel to Europe.