Diverticulitis refers to inflammation of abnormal pouches called diverticula that develop in the intestinal wall. According to the National Digestive Disease Information Clearinghouse, the most common symptom of diverticulitis is abdominal pain. This and additional symptoms, such as cramping, nausea, vomiting, chills and changes in bowel habits, may be reduced or prevented through adherence to a nutritious, high-fiber diet.

Fruits and Vegetables

Fruits and vegetables provide an array of vitamins, minerals and antioxidants, which can strengthen the body's immune system and prevent infections and disease. Fruits and vegetables also provide dietary fiber and hydration, both of which support digestive regularity. Examples of fiber and nutrient-rich fruits and vegetables that may prove helpful for people with diverticulitis include:

• apples
  
• pears
  
• raspberries
  
• prunes
  
• winter squash
  
• potatoes (with skin)
  
• sweet potatoes (with skin)
  
• cauliflower
  
• peas
  
• turnip greens

Whole Grains

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Whole grains are grains that have not been stripped of significant nutrients during food processing. Replacing processed carbohydrates with whole grains, such as 100 percent whole-grain bread in place of white bread and steel-cut oats in place of corn flakes may help improve the wellness in people with diverticulitis. Additional whole-grain foods include pasta, brown rice, wild rice, hot cereals and soups made with barley.

Legumes

Legumes, such as:

• beans
  
• chickpeas
  
• lentils
  
• split peas
  
• fit well within a diverticulitis-friendly diet

Legumes are fiber rich, low in fat and provide complex carbohydrates as well as protein. When consumed with a whole grain, such as brown rice, legumes create a "complete protein," meaning all essential amino acids are provided. Nutritious legume-based foods include black bean soup, hummus (paste made from ground chickpeas), dal (Indian-style cooked lentils), split pea soup and veggie burgers made from mashed beans.

Omega-3 Fatty Acids

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Omega-3 fatty acids are essential fats the body must reap through food or supplements.