A low-residue diet limits high-fiber foods, like whole-grain breads and cereals, nuts, seeds, raw or dried fruits, and vegetables. "Residue" is undigested food, including fiber, that makes up stool.

Keep reading to discover snack ideas ... fiber can be hard to digest during a UC flare-up. They may trigger symptoms such as diarrhea. The authors of a 2016 review suggest eating a low fiber diet ...

In addition to the No. 1 sign of constipation, a chronic low fiber diet can also have these side effects: If you’ve increased your fiber intake but still experience chronic constipation ...