I appreciate your question, I think everyone with a digestive disorder needs to take this into account. I also appreciate the comments that everyone with CD is different and different things will trigger different people, so keeping some sort of food journal to determine what your triggers are is necessary.
I like to stick to the basic rule that we need to be eating foods that are natural, whole, and minimally processed with no artificial ingredients. Start there, then work toward distilling this down into what actually helps your condition versus what is making you sick.
I've had the most positive results from eating whole grains (except corn), low dairy, fresh fruits (especially bananas), a ton of roasted or steamed veggies, and chicken. Spicy foods, nuts, and seeds do not bother me.
I have to avoid ground meat and any cased meat, eggs, fried foods, corn/popcorn, artificial preservatives/flavors, and milk.
It's worth the time and effort. I went off my meds a long time ago and have never looked back, most recent colonoscopy showed good improvement. I'm not saying that anyone should just stop taking their meds, but I think the idea that you'd like to improve your nutrition and possibly decrease or discontinue meds in the future is worth exploration.