I went to several specialists for a chronic digestive disorder and got wildly varying, directly conflicting instructions on which, if any, dietary choices might

I went to several specialists for a chronic digestive disorder and got wildly varying, directly conflicting instructions on which, if any, dietary choices might help me feel better. The common belief was that no dietary choice could make a significant difference. After 2 years of weekly injections, during which my health declined precipitously, and a couple of surgeries that took ~4x longer than expected for recovery, I abandoned this approach. I have since gotten my condition almost entirely under control through diet and other lifestyle changes. If a doctor had told me the simple rules I now follow, perhaps surgery and $4k/mo biologics could have been avoided, but the incentives are aggressively aligned against this option.