The best way to prevent diverticulitis is to modify your diet and lifestyle.
Here are some tips:
Eat more fiber by adding whole-grain breads, oatmeal, bran cereals, fibrous fresh fruits, and vegetables to your diet. However, take care to add fiber gradually. A sudden switch to a high-fiber diet can cause bloating and gas.
Bulk up your diet by adding an over-the-counter preparation containing psyllium, derived from the plant Plantago psyllium. You can also try ground psyllium...