People don’t need a diagnosis to know what foods impact them. A lot of the time doctors will recommend elimination diets to find out what foods to avoid. There’s no need to say it’s celiac if you know gluten containing foods make you feel worse.

For me it’s at least a wheat allergy, so I benefit from gluten free foods. I could get tested for celiac, but most tests require consuming gluten for a while in advance of testing. I’m not going to bother, since I know it’ll make me sick.

I actually appreciate the trend of people going gluten free, because even though prices have gone up, companies are taking more effort to make gluten free alternatives. The early gluten free alternatives were fairly nasty and now some options are close to the real thing.