No need to get freaked out over food. Forget all the theories. It’s not about sugar -wheat- dairy- nightshade-macrobiotic-vegetarian-food combining-whatever. You cannot heal any inflammatory bowel condition with any kind of diet. In fact you cannot even create one. As for inflammatory bowel conditions food is vastly overrated.
The only dietary goal you should have is to not irritate your colon anymore than it already is while you are getting it healed with the proper holistic treatment.