Diverticular Disease

Current international consensus identifies higher dietary fiber intake as associated with lower diverticular-disease risk and suggests fiber may help symptoms in symptomatic uncomplicated diverticular disease, but direct treatment evidence remains limited and heterogeneous.

• Evidence supporting fiber as treatment for symptomatic uncomplicated diverticular disease is low quality.
• Do not claim fiber prevents all diverticulitis episodes.
• Do not imply diverticulosis itself requires treatment.

Not established.

• Source 1: https://pubmed.ncbi.nlm.nih.gov/41443984/
• Source 2: https://pubmed.ncbi.nlm.nih.gov/28230737/

Prospective observational evidence does not support routinely avoiding nuts, corn, popcorn, or seeds to reduce diverticulitis risk. Current clinical guidance supports a healthy dietary pattern without routine avoidance of these foods after diverticulitis.

• Much of the direct food evidence is observational.
• Absence of increased risk does not establish these foods as preventive.
• Do not claim nuts, seeds, corn, or popcorn treat diverticular disease.

Not established.

• Source 1: https://pubmed.ncbi.nlm.nih.gov/18728264/
• Source 2: https://pubmed.ncbi.nlm.nih.gov/42390126/