
Crohn's disease is a complex condition to manage, and diet plays a crucial role in preventing flare-ups and reducing symptoms. While specific foods may not directly cause or worsen the disease, consuming healthy and nutritious foods can lower the risk of developing inflammatory bowel disease (IBD). People with Crohn's disease must be mindful of their dietary choices and make adjustments to suit their individual needs. Consulting with a doctor or dietitian is essential to develop a personalized diet plan that includes the right mix of nutrients and addresses any deficiencies.
| Characteristics | Values |
|---|---|
| Diet | May help prevent Crohn's flare-ups |
| It is important to note that foods and drinks affect everyone with Crohn's differently | |
| Smaller, more frequent meals can also reduce digestive symptoms | |
| Fried, fatty foods are commonly reported as flare-up culprits | |
| Refined carbohydrates may be easier to tolerate than high-fiber grains during a flare | |
| Lean protein is usually OK for most individuals with Crohn's | |
| It is important to drink more fluids, preferably water | |
| A low-residue diet is recommended for people with small-bowel Crohn's disease | |
| A liquid diet may help suppress symptoms of Crohn's disease | |
| A diet rich in calcium and vitamin D is recommended | |
| A multivitamin with minerals may help fill in missing nutrients | |
| A food diary is recommended to help identify trigger foods |
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What You'll Learn

Identify and avoid trigger foods
It is important to remember that trigger foods vary from person to person. However, there are some common trigger foods that tend to worsen symptoms. These include foods high in insoluble fibre, such as raw kale, apple skin, and sunflower seeds. High-fibre foods like Brussels sprouts, cabbage, and cauliflower can also be difficult to digest.
Lactose intolerance tends to coincide with IBD, so dairy products such as cow's milk, cream, ice cream, and custard should be consumed in limited quantities or avoided altogether. Opt for lactose-free dairy options or take a lactase enzyme supplement like Lactaid if you decide to consume dairy.
Fried, fatty foods are commonly reported as triggers, so it is advisable to opt for baked or broiled foods instead. Meats with a higher fat content should be avoided as they can worsen flare-ups and cause inflammation.
Sugar alcohols and artificial sweeteners like sorbitol, mannitol, and aspartame are also potential triggers. If you suspect a particular food is worsening your symptoms, try eliminating it from your diet and observe if your symptoms improve. You can also reintroduce foods after a period of remission to see if symptoms resume.
It is recommended to consult with a doctor or dietitian to determine your specific trigger foods and develop a personalised diet plan. Keeping a food diary can also help you identify and avoid trigger foods.
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Consume calcium-rich foods
Consuming calcium-rich foods is important for anyone with Crohn's disease, as some people with the condition may have trouble absorbing enough calcium, which is important for healthy bones and teeth and for the heart. Calcium-rich foods include dairy products such as yogurt, milk, and cheese. However, many people with Crohn's disease are lactose intolerant, so if you are, choose lactose-free dairy options such as fortified almond and rice milk, or take a lactase enzyme supplement before eating dairy.
If you are avoiding dairy altogether, there are plenty of other calcium-rich foods to choose from, including:
- Broccoli
- Kale
- Collard greens
- Oranges
- White beans
- Almonds
- Sardines (canned with bones)
- Tofu
- Chia seeds
It's also important to address vitamin D deficiency or ensure adequate vitamin D intake in addition to calcium to ensure absorption. If you do not consume dairy, work with a Crohn's or inflammatory bowel disease (IBD) dietitian to ensure adequate calcium intake.
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Take supplements and vitamins
While it is important to eat a variety of nutritious foods, Crohn's disease can make it difficult to absorb nutrients from food. In such cases, a doctor may recommend taking certain vitamins and supplements.
Multivitamins with Minerals
If your diet is very limited due to flare-ups, a multivitamin with minerals may help fill in missing nutrients. Multivitamin supplements can also help prevent malnutrition caused by the small intestine’s inability to properly absorb nutrients from food.
Calcium
Calcium is an important supplement, especially if you don’t eat many dairy products. Calcium-rich foods include broccoli, kale, collard greens, oranges, white beans, and almonds, as well as milk, yogurt, and cheese. If you are lactose intolerant, choose lactose-free dairy options such as fortified almond and rice milk, or take a lactase enzyme supplement.
Vitamin D
Many people with Crohn's disease have a vitamin D deficiency. A study published in the American Journal of Preventive Medicine reported that higher doses of vitamin D (1,000-2,000 IU each day) may be beneficial, particularly in reducing the risk of colorectal cancer, which may be higher in people with inflammatory bowel disease (IBD). A dose of 600 IU/day of vitamin D is generally recommended, but it's important to check with your doctor to see what dosage is ideal for you.
It is important to discuss any vitamins and supplements with a doctor or dietitian before you start taking them. A dietitian can determine if you are getting essential nutrients in your meals or if you might need supplements.
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Eat small, frequent meals
Eating small, frequent meals can help reduce digestive symptoms associated with Crohn's disease. This approach may be particularly beneficial if you have a decreased appetite, have lost weight unintentionally, or are experiencing a fecal infection.
Small, frequent meals can help ensure you are getting adequate nutrition, especially if your diet is restricted due to food triggers or intolerances. It is important to note that everyone's triggers are different, and it is recommended to work with a doctor or dietitian to identify your specific triggers and develop a personalized diet plan.
When planning small meals, it is crucial to focus on nutrient-dense foods. For example, a snack could be a tablespoon of peanut butter with a banana, hummus with crackers, or yogurt with berries. These combinations provide a balance of protein, healthy fats, carbohydrates, and vitamins.
Additionally, the way you prepare your food matters. Fried and fatty foods can trigger flare-ups, so opt for baked or broiled items instead. Lean protein sources, such as fish, chicken, and tofu, are generally well-tolerated and can help meet your protein needs, which may be increased during a flare-up.
It is also important to stay hydrated, as dehydration is a risk with chronic diarrhea, a common symptom of Crohn's disease. Water is the best choice for hydration.
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Stay hydrated
Staying hydrated is essential for anyone with Crohn's disease, as dehydration is a common risk due to chronic diarrhoea, a symptom of the disease. Water is the best form of hydration, so it's important to drink plenty of fluids throughout the day.
It's not just about drinking water, though. You can also get hydration from other sources, such as watery fruits and vegetables. For example, watermelon, strawberries, cucumbers, and celery are all excellent sources of hydration. These foods can also provide additional nutrients, such as vitamins and minerals, which are crucial for overall health and can help prevent malnutrition, a common concern for people with Crohn's disease.
It's important to note that not all watery fruits and vegetables are created equal when it comes to Crohn's disease. Some high-fibre options, like raw kale, apples, and Brussels sprouts, can be hard to digest and may even trigger symptoms for some people. So, while you want to stay hydrated, it's crucial to pay attention to your body's reactions to different foods and adjust your choices accordingly.
Keeping a food diary can be an excellent way to identify any trigger foods, including those that may worsen symptoms due to their water content. For example, some people with Crohn's disease find that high-fibre foods, such as whole grains, can be problematic during flare-ups. In these cases, a doctor may recommend a low-fibre diet, which can help food pass through the digestive system more easily and reduce abdominal pain, cramping, and diarrhoea.
In addition to hydration, it's important to maintain adequate protein intake to help your body heal during flare-ups. Lean protein sources, such as fish, chicken, and tofu, are often well-tolerated and provide essential amino acids to support tissue repair.
Overall, staying hydrated is a crucial aspect of managing Crohn's disease, and by listening to your body and working with a doctor or dietitian, you can develop a hydration strategy that supports your health and well-being.
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Frequently asked questions
While there is no cure-all diet for Crohn's disease, eating certain foods can help reduce inflammation. During a flare-up, it is recommended to eat soft, bland, and easily digestible foods such as bananas, potatoes, cooked vegetables, yogurt, fish, and low-fiber foods. Drinking plenty of fluids, especially water, is also important to stay hydrated. During remission, focus on eating nutrient-packed foods such as calcium-rich options to support bone strength.
Trigger foods or foods that cause unpleasant symptoms should be avoided. These can include high insoluble fiber foods such as raw kale, high-lactose foods such as cow's milk, and sugar alcohols like sorbitol and xylitol. Meats with high-fat content should also be avoided as they can worsen flare-ups and cause inflammation.
It is important to consult with a doctor or dietitian to develop a personalized diet plan. Keeping a food diary can help identify trigger foods and ensure a balanced diet. Eating regular meals with snacks is recommended to get enough protein, calories, and nutrients. Taking doctor-recommended vitamin and mineral supplements can also help refill necessary nutrients.
Crohn's disease can cause a decrease in appetite and affect the absorption of nutrients in the small intestine. This can lead to malnutrition and problems with growth and development, especially in children. Certain medications and surgeries used to treat Crohn's disease may also impact the absorption of nutrients.











































