What to eat when you have diverticulitis

As you get older, the chance of developing small pockets — called diverticula — in the lining of your large intestine increases. This is known as diverticulosis.

Usually, these pockets don’t cause any problems. But when these pouches become inflamed or infected, it can be serious. This is a condition called diverticulitis.

Symptoms of diverticulitis include stomach pain, nausea, and fever. You may need antibiotics or even surgery to treat it.

There are various reasons diverticulosis might develop into diverticulitis, including certain medications you may take. However, research shows that the amount of fiber in your diet — particularly a high fiber diet — can protect against developing diverticulitis.

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What to eat during a diverticulitis flare-up

If you had an active diverticulitis flare-up in the past, doctors may have advised eating foods that are easier to digest — particularly low fiber options. They might also have suggested avoiding foods like nuts, corn, and seeds. But recent research suggests these foods don’t worsen symptoms, so you don’t need to avoid anything particular.

Your diet is unlikely to trigger a diverticulitis flare-up. In fact, the exact cause of a flare-up is unknown. However, you know your symptoms best. If you find a certain food, particularly high fat, high fiber foods, worsens your symptoms, you can avoid it until you feel better.

At the start of a flare-up, when symptoms are most severe, doctors generally recommend sticking to clear liquids until they improve.

Clear liquid options include:

• plain water or water with honey
• electrolyte drinks
• flavored water
• ice pops without fruit chunks or pulp
• broths, such as chicken, beef, vegetable or bone broth
• clear protein drinks
• herbal teas or coffee without cream
• no-pulp juices, such as apple or cranberry 

What to eat while you heal from diverticulitis

When you feel you can eat solid foods again, you may want to go slow with fiber-rich options to begin with. Easy-to-digest foods can help you continue to heal. You can then slowly build up your fiber intake.

Here are some of the best low fiber foods to eat after a diverticulitis flare-up.

Plain crackers

Once the inflammation subsides and your symptoms begin to improve, you can opt for some crackers to snack on. This will help you slowly build up to a low fiber diet.  

White rice

If you’d like a change from crackers, you can also prepare some rice. But be sure to avoid brown rice for now — white rice is easier to digest and low in dietary fiber.

Applesauce

If you’re craving something sweet, applesauce or canned or cooked fruits without the skin or seeds are great options. After a flare-up, it may be more difficult to digest fresh fruits, particularly higher-fiber fruits like berries.

Plain yogurt

Not only a good source of calcium, plain yogurt is also easy to digest. A yogurt with live active cultures will contain good bacteria, which helps balance your gut microbiome, the name for the chemicals and bacteria in your digestive system.

Try to stick to nonfat or low fat yogurt at this time to help with digestion.

White pasta 

If you experience a diverticulitis flare, you can eat white pasta, which is easy to digest and low in fiber.

Low fiber cereal 

Although nutritious, try to steer clear of bran and granola-like cereals for now. Instead, go for processed options like cornflakes and puffed rice while you heal.

Eggs 

If you were sticking to a clear liquid diet during a flare-up, your diet likely lacked protein during this time. Egg dishes, such as scrambled eggs, are protein-rich and easy to digest. And they won’t irritate your diverticula.

Avocado

Once your recovery is further along, you can start to work more fat into your diet. Avocados are a standout choice. Avocados contain healthy fats, which promote overall health.

These fats support heart health and can even help your body absorb vitamins from other foods. Avocados also contain small amounts of fiber, a perfect amount during this stage.

High fiber foods

Once the flare-up resolves, you’ll want to slowly increase your fiber intake. A high fiber diet helps build healthy bacteria in the gut and promotes softer stools that pass more easily, meaning the diverticula are less likely to become inflamed.

A high fiber diet includes an overall healthy eating pattern rich in:

• whole fruits like pears, berries, and bananas
• vegetables, such as broccoli, carrots, and squash
• beans and lentils like black beans, kidney beans, and split peas
• whole grains, such as brown rice, oats, and whole wheat breads and pasta

It’s much like the Mediterranean diet or the DASH diet.

However, it’s important not to ramp up your fiber intake suddenly. Instead, increase it over a few weeks and drink plenty of water. This will give your body time to adjust.

After a while, you can fill your plate with plant-forward dishes, which will do good for your gut and overall health.

Medications to treat diverticulitis

While eating the right foods is important for treating diverticulitis, you might also need medications. Oral antibiotics, either on their own or in combination with other drugs, are the most common treatment method.

Examples include ciprofloxacin (Cipro) or sulfamethoxazole-trimethoprim (Bactrim) combined with metronidazole (Flagyl) or clindamycin (Cleocin), or a doctor might prescribe amoxicillin-clavulanate (Augmentin) on its own.

A doctor may also recommend pain relievers, such as acetaminophen (Tylenol), or drugs that also target inflammation, such as ibuprofen (Advil) and naproxen. However, always speak with a doctor first, as these medications may not always be suitable for your condition.

If you have abdominal pain and think you might have diverticulitis, reach out to a doctor. They can refer you to a gastroenterologist.

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Summary

Diverticulitis can cause symptoms like pain and bloating. Research shows that while your risk of developing it increases with age, eating a high fiber diet can help prevent it.

If you have diverticulitis and experience a flare-up, you might want to eat low fiber, easy-to-digest foods while you recover. Options include plain crackers and white pasta. You can then slowly start to increase your fiber intake, introducing small portions of whole fruits like apples and whole wheat bread and pasta.

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