Research suggests that a diet low in fiber and high in red meat may increase your risk of getting diverticulitis—inflammation of one or a few pouches in the wall of your colon. Eating high-fiber foods and eating less red meat may lower the risk.
Actually, no specific foods are known to trigger diverticulitis attacks. And no special diet has been proved to prevent attacks. In the past, people with small pouches (diverticula) in the lining of the colon were told to avoid nuts, seeds and popcorn.
Diverticulosis is a condition in which small, bulging pouches (diverticuli) form inside the lower part of the intestine, usually in the colon. Constipation and straining during bowel movements can worsen the condition. A diet rich in fiber can help keep stools soft and prevent inflammation.
You may have heard advice that people with diverticular disease should avoid small, sharp and hard foods such as nuts, seeds and corn. The thinking is that there is a risk of undigested remnants of these foods lodging in the diverticula and causing inflammation.
Diverticulosis: What to Eat. Cater says people with diverticulosis can benefit from eating fiber-rich foods, including: Whole grains, such as quinoa, bulgur, teff, barley, popcorn, oats, shredded wheat or bran cereals, and whole grain breads. Beans and legumes, including black beans, kidney beans, chickpeas and lentils.
A diagnosis of diverticulitis no longer means you have a long list of foods to avoid. At one time, doctors recommended avoiding nuts, popcorn, seeds and even fruits or vegetables with seeds (like tomatoes or strawberries). But recent studies suggest those foods do not contribute to flare-ups and are fine to eat.
Diverticulitis is caused by an infection of one or more of the diverticula. It is thought an infection develops when a hard piece of stool or undigested food gets trapped in one of the pouches. This gives bacteria in the stool the chance to multiply and spread, triggering an infection.
Fresh fruits, like apples, have the most fiber when eaten with the skin. 13 However, if you're having symptoms of diverticulitis, look for lower-fiber options, like applesauce. Bananas are another good source of fruit fiber.
You can get some fluids from the foods you eat—especially foods with high water content, such as most fruits and vegetables. Water is the best beverage choice to stay hydrated. Avoid or limit sugar-sweetened beverages, including regular soda, fruit drinks, sports drinks, energy drinks, and sweetened coffee and tea.
CAUSES. The most commonly accepted theory for the formation of diverticulosis is related to high pressure within the colon, which causes weak areas of the colon wall to bulge out and form the sacs. A diet low in fiber and high in red meat may also play a role.
Treatment for diverticulosis
A gradual switch to a diet with increased soluble fibre (green vegetables, oat bran and fibre supplements such as psyllium) usually leads to an improvement in bowel habit and mild symptoms. Some foods may make symptoms worse or even lead to diverticulitis.
“Eggs are a great source of protein, and they're easily digested,” Dr. Nazarian says. And they won't irritate your diverticula.
You may need to adopt a clear liquid diet to soothe your symptoms during a severe diverticulitis flare-up. On a clear liquid diet, you can eat: Clear broths, but not soup. Pulp-free juices that are clear such as apple juice.
Eggs contain protein that can be easily digested, and it will not irritate your digestive tract. Therefore, scrambled eggs can be taken during diverticulitis.
Eating more whole fruits (as opposed to sauces and juices) and especially apples, pears and prunes resulted in the lowest risk of developing diverticulitis. Fiber from vegetables, beans and lentils was also associated with a reduced risk of the infection.
The diverticulitis flare will usually go away after four to six weeks, Doerfler says. At that point, you can start eating higher-fiber foods like whole grains, fruits and vegetables, and healthy fats like nuts, seeds, avocado, and olive oil.
It's also OK to eat small fruits with seeds, such as strawberries and blueberries. Research has found that these foods are not associated with an increased diverticulitis risk.
How is uncomplicated diverticulitis treated? In about 95 out of 100 people, uncomplicated diverticulitis goes away on its own within a week. In about 5 out of 100 people, the symptoms stay and treatment is needed. Surgery is only rarely necessary.
Mild cases of diverticulitis are usually treated with antibiotics and a low-fiber diet, or treatment may start with a period of rest where you eat nothing by mouth, then start with clear liquids and then move to a low-fiber diet until your condition improves. More-severe cases typically require hospitalization.
It is best to avoid these types of foods so that diverticulitis symptoms do not become worse. High fiber vegetables such as broccoli, cabbage, and artichokes are high in fiber and can be difficult to digest. Eating them may cause gas and bloating. People with diverticulitis may not digest lactose well.
However, overstimulation of the bowels for those with diverticulitis can cause more pain. Coffee may also increase lower abdominal pain and worsen diarrhea. The bottom line is that diverticulitis and drinking coffee aren't a great combination.
Sugar is another big culprit. It plays a part in symptomatic diverticular disease and may mimic irritable bowel syndrome.