Diverticulitis Diet

Build a diverticulitis diet plan to relieve your symptoms and improve your health!

Diverticulitis Doesn't Have to be a Pain

Work with your doctor and dietitian to build a diverticulitis diet to manage the condition

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Diverticulitis may have impacted you unexpectedly.  It can be a very uncomfortable condition, with symptoms that include stomach pain, nausea, abdominal tenderness, and even constipation.  To best manage diverticulitis:

  • Learn the foods to eat that can help avoid a flare-up

  • Understand the protocols if your diverticulitis becomes "active"

  • Integrate these specific recommendations into your day-to-day routine

Diverticulitis is one of the most common gastrointestinal (GI) conditions, affecting over 2.5 million people in the United States. More cases of diverticulitis may be unknown because of a lack of symptoms.

Diverticulitis Diet: Let's Chat

What is Diverticulitis?

Diverticulitis is the active, symptom-presenting form of diverticulosis. Many people live years with diverticulosis without ever showing symptoms. Diverticulosis is diagnosed when small pouches form in the lining of the digestive system, known as diverticula. These pouches develop in weak spots of your digestive system. Over time, they push through the walls of the digestive system and can become inflamed and infected.

Risk Factors that Increase Chances of Developing Diverticulitis:

  1. Obesity
    Having a BMI over 30 is considered overweight. A research study by the American Gastroenterological Association found that patients considered overweight/obese were much more likely to experience diverticulitis flare-ups.

  2. Diet high in red meat
    Consuming a diet high in red meat is associated with higher body fat and weight gain. Those who consume a diet consisting of mostly red meat are 58% more likely to develop diverticulitis, compared to those who do not. 

  3. Lack of exercise
    Exercise lowers the risk of diverticulitis by decreasing constipation and releasing pressure from the digestive system. When there is a lot of pressure across the digestive system, small pouches are more likely to form.

  4. Diet low in fiber
    A diet high in fiber has shown to aid in digestion helping to regulate bowel movements. The more you go, the less pressure in your system, decreasing the risk of developing diverticulitis.

  5. Age
    As you age, the connective tissue in the lining of your digestive system weakens, resulting in a higher chance of developing pouches that can rupture and become inflamed.

When a Diverticulitis flare-up occurs, you may experience severe abdominal pain, fever, nausea and a change in bowel habits. Mild cases can be treated with diet, rest, and antibiotics. Severe cases may require surgery. About 75% of cases are considered mild, and can be treated easily with lifestyle changes. If left untreated, diverticulitis complications may occur, including perforations, abscesses, obstructions, and fistula, within the digestive system.  Long term impacts include sepsis (systemic infection).


How to treat Diverticulitis

Diverticulitis treatment depends on the severity of your symptoms. Mild cases of diverticulitis are treated using diet modifications and antibiotics. Severe cases will require immediate doctor attention, sometimes resulting in surgery. For mild cases of diverticulitis, treatment is designed to relieve stress on your digestive system, which gives your body time to rest and heal. Symptoms should improve in 2-3 days. Treatment decisions will progress depending on your specific symptoms.

We share quick tips for Diverticulitis treatment below.

If you are looking for a comprehensive set of recommendations, read more on our Diverticulitis Treatment page.

Progression of Treatment for Diverticulitis Flare-Up

1. Nothing by Mouth

Refrain from eating for a few hours up to one day.

2. Clear Liquid Diet

Begin to incorporate broth, ice pops, Jello, water, apple juice for a few days.

3. Soft Food Diet

When you start to feel better add yogurt, applesauce, rice, bananas, fruit without skin.

4. Return to Regular Diet

You should feel better within a few days. This is when you can slowly return to a regular diet.


* IMPORTANT NOTE: if at any point a fever develops, abdominal pain increases, or you are unable to keep clear liquids down, contact your doctor. These symptoms are sign of more adverse complications.


What to Eat to Prevent a Diverticulitis Flare-up

A flare up can occur when pressure in your digestive system is too high, (constipation). To avoid constipation, consume a high quality, gut-healthy diet consisting of lean protein and high fiber.

Looking for a comprehensive list of Foods to Eat with Diverticulitis?  Check out our dedicated page here.

Below are our guiding principles:

Key Points of a Diet to Prevent a Diverticulitis Flare-up

Lean Protein

Eating meat low in fat will aid in weight loss and keep you feeling full longer.

White meat poultry, white fish, plant-based proteins

High Fiber

Insoluble fiber adds bulk to the stool and increases the rate at which food passes through the stomach and intestines, helping to prevent constipation.

Whole grains, brown rice, fortified cereals, quinoa


Starchy vegetables will increase fiber consumption aiding indigestion.

Leafy greens, peas, squash, parsnips, sweet potatoes


Fruit high in fiber will help to relieve constipation, and boost immunity.

Pears, apples, oranges, prunes

Healthy Fats

Fat is a biological necessity and will increase hormone production, aid in vitamin absorption, and improve heart health and brain function.


Avocado, nut butters, olive oil

Dealing with Diverticulitis? Download our list of foods to eat!

What foods should I avoid?

Certain foods can irritate your digestive lining and cause pain and discomfort. These foods are specific to each case of diverticulitis, so it is important to be mindful of specific trigger foods that may cause your flare-ups.  Avoid foods that are hard to digest, so that these items do not become stuck in your GI diverticula (pouches).

Food to Avoid:

  • Seeds
    Poppy seeds, chia seeds, flax seed, sesame seeds can get stuck in diverticula. It is best to avoid fruit with seeds such as strawberries, raspberries, and blackberries

  • Raw vegetables
    Veggies can be harder to digest because the insoluble fiber is fully intact and can increase pain and discomfort. Cooking your vegetables will help your body break down fiber easily.

  • Corn
    The fiber and sugar content in corn causes come stomach discomfort, causing inflammation in the digestive system.

  • Spicy foods
    Spicy foods can lead to gut inflammation, resulting in vomiting and diarrhea.  It is best to avoid these types of foods so that diverticulitis symptoms do not become worse.

  • Cruciferous Vegetables
    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.

  • Milk Products
    People with diverticulitis may not digest lactose well.  Even people who are not lactose intolerant will notice bloating, gas and inflammation when eating and drinking products such as milk, cheese, and yogurt. 

  • Greasy, High Fat, Fast Food
    High fat, fried food stimulates the digestive system and causes inflammation, resulting in acid reflux that can irritate diverticulitis symptoms.

Dealing with Diverticulitis? Download our list of foods to avoid!

Should I eat a high fiber diet?

Eating fiber depends on the stage of your condition: diverticulosis vs diverticulitis.

Fiber is the most important nutrient in preventing a diverticulitis flare or alleviating its symptoms if one occurs.

We have dedicated an entire page to helping you build fiber into your Diverticulitis Diet. 


(inactive symptoms)


(active symptoms)

During this stage, symptoms are not present and it is important to eat a high fiber diet to discourage inflammation and constipation.

Food High in Fiber:

  • Whole grains
  • Whole wheat breads and pastas
  • Brown rice
  • Potatoes
  • Broccoli
  • Brussel sprouts
  • Cabbage
  • Cauliflower
  • Leafy Greens

During this stage, symptoms are active (flare-up) resulting in discomfort, inflammation, and infections. Consuming a low fiber diet allowsyour digestive system to heal.

Food Low in Fiber: 

  • White bread without nuts or seeds
  • White rice
  • Cooked vegetables without skin or seeds
  • Oranges
  • Cantaloupe
  • Watermelon
  • Eggs
  • Poultry
  • Dairy products

Tips to managing Diverticulitis with Fiber!

When should I consume a diverticulitis clear liquid diet?

Mild cases of diverticulitis can be treated with nutrition therapy. Oftentimes, process step begins with a clear liquid diet. A diverticulitis clear liquid diet is a medically indicated protocol for severe GI conditions. This liquid diet is a temporary solution that gives your digestive system a chance to rest and heal.

The objective is to keep your body hydrated while still providing you with the nutrients you need.  The clear diet can be helpful for a day or two; we work with you to make a plan to transition your system away from the liquid diet once your symptoms dissipate.  If you have diabetes, work with a nutritionist for diverticulitis, so that we can make sure your body gets the right amount of carbohydrates and we can help you monitor your blood sugar.

Components of a Diverticulitis Clear Liquid Diet

  1. Broth
  2. Fruit juices without pulp
  3. Ice chips
  4. Ice pops without bits of fruit or pulp
  5. Gelatin
  6. Water
  7. Honey
  8. Tea or coffee without cream
  9. Jell-O
  10. Sports Drinks


A typical day on a diverticulitis clear liquid diet may look like:

  • 1 bowl of gelatin
  • 1 glass pulp-free fruit juice
  • 1 cup tea without dairy
  • Sugar or honey
  • 1 glass pulp-free fruit juice
  • 1 bowl gelatin
  • 1 glass pulp-free fruit juice
  • 1 glass water
  • 1 cup broth
  • 1 bowl gelatin
  • 1 pulp-free popsicle
  • 1 cup tea without dairy
  • Sugar or honey
  • 1 glass pulp-free fruit juice or water
  • 1 cup broth
  • 1 bowl gelatin
  • 1 cup tea without dairy
  • Sugar or honey


When should I try the BRAT Diet for Diverticulitis?

The BRAT Diet was created as a mnemonic device to help people remember the foods that can help alleviate a diverticulitis flare.

The original foods in this protocol include bananas, rice, apples and toast... however, it has since been expanded to include other mild foods that can help alleviate diverticulitis symptoms.

The BRAT Diet includes specific foods across all of the food groups: vegetables, fruits, starches, proteins... and even drinks.

To read more about the specific foods within the BRAT Diet for Diverticulitis, as well as the foods to exclude... and a sample 3-day sample menu, read our blog post here.


What is a low residue diet for diverticulitis?

Hopefully, the clear liquid diet has calmed your digestive system. Once you are feeling normal again, we recommend transitioning to a low residue diverticulitis diet. This philosophy consists of eating low fiber foods that your body can digest easily. Think of "low residue" as gentle on the digestive system.

Low residue foods include:

  1. Canned or cooked fruits without skin or seeds
  2. Canned or cooked vegetables without the skin
  3. Eggs, fish and poultry
  4. Refined white bread
  5. Fruit and vegetable juice without pulp
  6. Low fiber cereal
  7. Milk, yogurt, and cheese
  8. White rice, pasta, and noodles

What are OnPoint's favorite recipes for diverticulitis?

  1. This banana smoothie is easy to make, easy on your stomach, and versatile enough to eat for breakfast or a snack-on-the-go.
  2. Our favorite carrot soup features cooked carrots with a delicious mix of mild spices and accent flavors
  3. Craving something a bit more indulgent? Try this healthy mashed potato recipe

Will I ever be able to eat my favorite foods again?

Yes, you should be able to. Unless you have an extreme condition, your GI system should be able to tolerate most foods within a few weeks after a flare-up or "attack".

You may choose to avoid foods that cause severe issues for your body, such as whole intact seeds. Your diverticulitis diet should always feel as though you are in control of your routine and your food choices.

Even after a flare-up, do your best to not fear food! We can help!

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Backed by science

Our diverticulitis programs are based upon the latest science and aligned with medical protocols

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Tailored just for you

Our nutritionists build your unique plan based upon your body type, food preferences, and lifestyle

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Work with experts

Our team includes registered dietitians (RDs) with hands-on experience helping people with diverticulitis

We would love to meet you!

Submit your question directly to our team

Our dietitians and nutritionists build custom plans tailored to help you manage your GI issues. Our expertise includes: Diverticulitis, Diverticulosis, Low residue diet, and High fiber and low fiber diets, where appropriate

“We have helped hundreds of clients manage their diverticulitis symptoms. We know how hard it can be to take the first step. We hope you will allow us to help you tackle your health issues head-on."
Britney Kennedy Founder
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