"Only rice" is an elimination diet for allergies that I should have tried decades ago, but dumbass mainstream medicine never recommended.

I found out there are slow allergies mediated by immunoglobulin G that you can't detect while eating, so I did a blood test. Found some strong positives (milks, eggs), and then through elimination found out false negatives that I also can't eat (peanut, soy), and, thanks to the doctor whom I went out of my way to see about IgG, some that are typically harmful to those with IBS that I also need to avoid (gluten, sunflower oil, rapeseed oil). Supplemental protective agents Aloe barbadensis, xyloglucan, and butyrate also help. Getting really healthy now - no more IBS if I don't eat mistakes.

The mainstream doctors say that's all nonsense and that I'm a hypochondriac who perceives having gotten better for no reason.

My previous successful departure from the mainstream was making my gallbladder go from "full of stones" to "empty except a thin layer of sediment on the bottom" as seen by ultrasound. Now that there's proof, the doctors can't dismiss that. https://www.quora.com/What-are-some-good-diet-considerations-for-Gallstone-sufferers/answers/107344862