I haven't been diagnosed with Celiac - I'm fairly certain I have gluten allergy/intolerance rather than celiac. This is a conclusion I reached by myself after trying everything to reduce my BFS symptoms. I did tell my primary care doc about how the gluten free really helped and he was not surprised - said more and more they're realizing that gluten can do awful and strange things to the body.I took a million supplements the first four years of BFS, with almost no success. now I take a daily multi, D in the fall and winter, a calcium mag mix, and alpha liopic acid. I am not sure if I had the malabsorption problem. After years of trying everything, my theory on my BFS is that it is caused by internal inflammation brought on by allergies, both food and environmental. Removing gluten lessened my allergy load, hence less inflammation and less BFS.I think BFS is caused by different things in different people - which is very annoying when looking for a solution. This is working for me at the moment, but I'm never convinced that it will stay that way, since that's the nature of BFS.