A low-fiber/low-residue diet limits the amount of dietary fiber and residue-providing food in your diet. Dietary fiber is a type of carbohydrate found in plants that cannot be digested. Residue is the undigested part of food that makes up stool. Limiting dietary fiber and residue reduces the amount of food that passes through the large intestine.

This diet may be recommended if you have gastrointestinal distress or discomfort, or if your gastrointestinal system needs to rest. Conditions that may require a low-fiber/low-residue diet include ulcerative colitis and Crohn’s disease. It may also be prescribed as a transitional diet following certain types of surgery and if you are undergoing radiation therapy to the abdomen.