What sort of eating disorder did you (or do you) have? Abuse laxatives? Binge eat? Anorexic? What good foods and bad foods for you to eat might be related to how you got IBS-C, and what disorder you have might shape what's suggested for you. For instance, many people with diarrhea and easily upset stomach are counseled to eat small, bland meals, but I wouldn't suggest that to a recovering anorexic, who might be tempted to go too far with that.