alt Hacker NewsI have IBS, and what I did was literally that I kept a list of foods and symptoms they cause me.
Turns out, carbohydrate-rich foods cause me massive issues, too much protein causes me some issues. Saturated fat is the least damaging to my gut health, followed my monounsaturated fats. Polyunsaturated fats and carbohydrates are the devil I have to avoid, no questions asked.
Recently I was diagnosed with autoimmune and had to follow AOP diet.
It was very promising in the exclusion phase - cutting gluten and dairy eliminated all the symptoms for 3 months. Per protocol I also excluded other things like nightshades, nuts/seeds, grains. But after 3 months, while adding things back, even in small amounts, one by one, got all the symptoms back, being more severe, and after excluding things again, symptoms are not going away completely. I think that our body is a very complex system, distributed in some sense, with delayed and cascade effects that are really hard to "debug".