Dietary Recommendations for Preventing Diverticular Flares

Foods You Should Eat

• The American Gastroenterological Association recommends against routinely advising avoidance of nuts and seeds, as they are safe and may be protective against diverticular complications 1
• A high-fiber diet from whole food sources, including fruits and vegetables, is recommended, with a goal of 5+ servings daily 1
• Engaging in regular vigorous physical activity is suggested for risk reduction by the American Gastroenterological Association 1

Foods to Limit or Avoid

• Limiting processed meats, including bacon, sausage, hot dogs, deli meats, and salami, is recommended 2, 3
• Minimizing sweets and highly processed foods, including those high in added sugars, salt, and saturated fat, is advised 2, 4

Important Clinical Considerations

• Patients with intestinal strictures or active obstruction may need temporary dietary modifications, but those in remission without strictures do not need to limit fiber intake 5
• The American Gastroenterological Association suggests that the evidence quality for dietary recommendations is limited, but a high-fiber diet is still a reasonable approach due to its safety profile and general health benefits 1

Dietary Recommendations for Diverticular Disease

Introduction to Dietary Guidelines

• The American Gastroenterological Association recommends against routinely advising patients with a history of acute diverticulitis to avoid consumption of nuts and popcorn (conditional recommendation, very low-quality evidence) 6, 7, 8

Current Dietary Recommendations

• A prudent dietary pattern high in fiber from fruits, vegetables, whole grains, and legumes is recommended 9, 10
• Low intake of red meat and sweets is advised 9, 10
• Maintaining normal body mass index is recommended 9, 10
• Regular vigorous physical activity is suggested 9, 10
• Avoiding smoking is recommended 9, 10

Clinical Implications

• Advising patients to avoid popcorn is not useful and may be counterproductive 6, 7, 8
• Restricting foods like popcorn without evidence may reduce overall fiber intake, which is protective 10, 11
• The American Gastroenterological Association suggests that popcorn, as a whole grain, contributes to the recommended high-fiber diet pattern 10