Diverticular disease includes conditions like diverticulosis and diverticulitis. Diverticulosis is the formation of small pouches, or diverticula, in the lining of the bowel, while diverticulitis is the inflammation or infection of these pouches. Diet can play an important role in managing these conditions and preventing complications. Here's a general guide on what to eat and what to avoid:

Foods to Eat:

• High-Fiber Foods: A high-fiber diet can help keep your bowels regular and prevent constipation, reducing the risk of diverticula formation. Foods rich in fiber include whole grains (like whole wheat bread, brown rice, and oats), fruits, vegetables, and legumes (like beans and lentils).

• Water and Other Fluids: Drinking plenty of water can help fiber do its job. Aim for 8 glasses a day, but this can vary based on individual needs and activity level.

• Lean Proteins: These include poultry, fish, eggs, and tofu. They are easier on your digestive system compared to high-fat meats.

Foods to Avoid or Limit:

• Low-Fiber Foods: White bread, white rice, processed foods, and other foods low in fiber can lead to constipation and increase the risk of diverticulosis.

• Certain Fruits and Vegetables: In the past, people with diverticular disease were often told to avoid seeds and nuts, including foods like popcorn, sesame seeds, and strawberries, due to the fear that these foods could get trapped in the diverticula and cause inflammation. However, recent research has shown that this is not generally the case. It's still a good idea to discuss it with your healthcare provider.

• Fatty Foods: Foods high in fat can increase your risk of inflammation and should be limited.

• Red Meat: Some studies suggest that a diet high in red meat may increase the risk of developing diverticulitis.

During a diverticulitis flare-up, your healthcare provider may recommend a temporary switch to a low-fiber or liquid diet until your condition improves. This might include foods like broth, gelatin, and cooked fruits and vegetables without skin or seeds.

This is a general guideline, and individual needs may vary. Always consult with a healthcare provider for personalized advice. Also, a gradual increase in dietary fiber is usually recommended instead of a sudden increase, as a rapid increase can cause gas and bloating.