I know a U.C. sufferer who is doing much better after making ... no dietary changes at all. Please don't take this the wrong way, but intermittent chronic diseases (such as auto-immune disorders like Crohn's and U.C.) might as well be designed to take advantage of the broadly recognized weaknesses of the human mind:
- the perception of pattern where none exists
- a preference for causal narratives involving benevolent and malevolent agents
- a preference for simple certainty over complex uncertainty
- broadly, a sense that you are in control
I am not saying anything about the two of you as individuals or as patients, or about the content of your posts here. But the standard of evidence and reasoning that I have encountered elsewhere trying to get a grasp on U.C. is ... not high. There are many "qualified" people (lifelong UC sufferer with an MS in nursing, etc.) who stopped eating gluten when they were 14, saw their symptoms shortly thereafter, and now push checklists asserting that every fellow patient should stop eating gluten.
Step 1: observe one data point
Step 2: publish conclusion based on data point as definitive fact
Ambiguity and uncertainty are unpleasant and, when the stakes are high, scary. But false certainty in the face of high stakes appeals to me not at all.