A low residue diet limits the amount of fiber and other foods that leave undigested material in the colon. The goal is to reduce the volume and frequency of bowel movements, giving the digestive system time to rest and heal — especially after surgery, during flare-ups of conditions like diverticulitis, Crohn’s disease, or ulcerative colitis, or before/after colon procedures.
“Residue” refers to undigested food, fiber, and other substances that remain in the intestines and are eliminated in stool. This diet is typically short-term and medically supervised.
By limiting residue, this diet helps ease abdominal discomfort, reduce gas and bloating, and prevent intestinal blockages. It’s often prescribed when the bowel needs a break — but it’s not meant for long-term nutritional management.