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What is best to eat during a Crohn's flare-up?

4 min read

According to Crohn's & Colitis UK, most people with Crohn's disease feel that certain foods can trigger flare-ups, though this can vary greatly from person to person. When symptoms intensify, knowing what is best to eat during a Crohn's flare-up can be crucial for managing discomfort and supporting healing.

Quick Summary

During a Crohn's flare, focus on a low-residue diet consisting of low-fiber, bland, and well-cooked foods. Prioritize hydration, lean protein, and small, frequent meals to minimize digestive stress and ensure adequate nutrition.

Key Points

  • Low-Residue Diet: Focus on soft, low-fiber, well-cooked foods to reduce stool bulk and minimize irritation to the inflamed bowel during a flare-up.

  • Prioritize Hydration: Drink plenty of water, broth, or oral rehydration solutions to combat dehydration caused by diarrhea.

  • Consume Lean Protein: Increase your intake of lean, tender protein sources like chicken, fish, and eggs to aid in tissue repair and healing.

  • Avoid High-Fiber Foods: Limit whole grains, nuts, seeds, and raw fruits and vegetables, as these can exacerbate symptoms like cramping and diarrhea.

  • Eat Small, Frequent Meals: Opt for several smaller meals throughout the day instead of large ones to reduce digestive strain and maximize nutrient absorption.

  • Consider Supplements: Consult your doctor about potential vitamin and mineral supplements, such as B12, vitamin D, and calcium, to counteract potential deficiencies from reduced absorption.

In This Article

Navigating Nutrition During a Crohn's Flare-Up

A Crohn's disease flare-up is a period of increased disease activity and intensified symptoms, such as diarrhea, abdominal pain, and cramping. During these times, the intestinal lining is inflamed, making it harder for the body to absorb nutrients and increasing sensitivity to certain foods. A common strategy is to adopt a temporary, low-residue diet that is easier for the inflamed gut to digest, reducing stool bulk and irritation. It is important to emphasize that this is not a long-term diet but a short-term measure to aid recovery. Personal food tolerances vary, so keeping a food diary is key to identifying individual triggers. Always consult with your healthcare provider or a dietitian before making significant dietary changes.

Foods to Prioritize During a Flare-Up

When your gut is inflamed and working overtime, focusing on nutrient-dense, easily digestible foods can help reduce symptoms and prevent malnutrition. Protein and calorie needs actually increase during a flare due to the body's healing process.

Lean Proteins

Lean protein is essential for rebuilding muscle and supporting the healing process.

  • Skinless poultry: Chicken or turkey, baked, steamed, or grilled for a tender texture.
  • Fish: Oily fish like salmon or tuna provide omega-3 fatty acids, which have anti-inflammatory properties.
  • Eggs: Scrambled or hard-boiled eggs are easy to digest.
  • Tofu: Soft or silken tofu is a good plant-based option.

Refined Grains and Starches

These are lower in fiber and easier to pass through the digestive tract.

  • White rice and white pasta: Refined versions have less insoluble fiber.
  • White bread: Opt for white sourdough or regular white bread, not whole grain.
  • Cooked cereals: Cream of wheat or farina are gentle choices.
  • Potatoes: Well-cooked, peeled potatoes are a great source of potassium.

Peeled, Cooked Fruits and Vegetables

Cooking and peeling fruits and vegetables breaks down tough fibers that can irritate the gut.

  • Bananas: High in potassium and easy to digest.
  • Applesauce: A cooked, peeled apple product that is gentle on the stomach.
  • Cooked carrots: Steamed until tender.
  • Squash: Seedless and peeled, such as butternut squash.
  • Canned fruit: Peaches or pears without the skin.

Hydrating Fluids

Diarrhea and fever can lead to dehydration, so maintaining fluid intake is critical.

  • Water: The best choice for hydration.
  • Broth: Bone or vegetable broth provides essential fluids and electrolytes.
  • Oral rehydration solutions: These are formulated to restore fluids and electrolytes lost during diarrhea.
  • Smoothies: A blend of tolerated fruits and liquids can be a nutrient-dense option.

Foods to Avoid During a Flare-Up

Certain foods can exacerbate symptoms during a flare. Limiting or avoiding these can help reduce irritation and discomfort.

High-Fiber Foods

Insoluble fiber, found in many plant foods, adds bulk to stool and can worsen diarrhea and abdominal pain.

  • Whole grains: Whole wheat bread, brown rice, and whole grain cereals.
  • Nuts and seeds: These can be abrasive to an inflamed intestinal lining.
  • Raw vegetables and fruits with skin: Skins and seeds are high in insoluble fiber.
  • Legumes: Beans, lentils, and peas contain fiber and can be gas-producing.

High-Fat and Fatty Foods

Greasy and high-fat foods can be harder to digest and may aggravate symptoms.

  • Fried foods: French fries, fried chicken, and other deep-fried items.
  • Fatty cuts of meat: Ribs or other high-fat red meats.
  • Butter and margarine: Can be irritating in large amounts.

Other Irritants

  • Spicy foods: Can irritate the sensitive intestinal tract.
  • Caffeine: Found in coffee, tea, and soda, it can stimulate the bowels and worsen diarrhea.
  • Alcohol: Both sugar and sulfates in alcohol can irritate the GI tract.
  • Sugary drinks and artificial sweeteners: Concentrated sugars can pull water into the intestine, worsening diarrhea.
  • Cruciferous vegetables: Broccoli, cauliflower, and cabbage can produce gas and bloating.

Diet during a Flare: Recommended vs. Avoid

Food Type Recommended During Flare To Limit or Avoid During Flare
Grains Refined grains (white rice, white pasta, white bread) Whole grains (brown rice, whole wheat bread), cereals with nuts/seeds
Fruits Peeled, cooked fruits (applesauce, canned pears), bananas, melons Raw fruits with skin/seeds, dried fruit, citrus
Vegetables Cooked, peeled vegetables (carrots, squash, asparagus tips) Raw vegetables, cruciferous vegetables (broccoli, cabbage)
Protein Lean proteins (chicken, fish, eggs, tofu) High-fat red meats, tough or fried meats, legumes
Dairy Lactose-free alternatives, yogurt with live cultures (if tolerated) Full-fat dairy, cheese with nuts/seeds (if lactose-intolerant)
Fats Healthy fats like olive oil, smooth nut butters Fried foods, high-fat spreads, chunky nut butters
Beverages Water, broths, diluted pulp-free juice, herbal tea Alcohol, caffeine, carbonated drinks, high-sugar drinks

Important Nutritional Considerations and Tips

Beyond what you eat, how you eat can also significantly impact your symptoms during a flare.

  • Eat small, frequent meals: Instead of three large meals, try eating 5-6 smaller meals or snacks throughout the day. This puts less strain on your digestive system.
  • Focus on food preparation: Cooking methods like boiling, steaming, grilling, and poaching are gentler on the gut than frying. Peeling and pureeing foods also aids digestion.
  • Supplementation: Malnutrition is a concern during flares due to poor appetite and reduced nutrient absorption. Your doctor may recommend supplements for vitamins like B12, vitamin D, iron, and calcium.
  • Keep a food diary: Track your food intake and symptoms to help identify personal trigger foods. Everyone's Crohn's disease is unique, and a food that bothers one person may be fine for another.

Conclusion

Managing a Crohn's flare-up involves making strategic dietary adjustments to minimize symptoms while maintaining adequate nutrition. A low-residue diet, consisting of bland, low-fiber, and well-cooked foods, alongside plenty of hydrating fluids, can provide relief. Avoiding common irritants like high-fat, spicy, and high-fiber foods is also crucial. Remember that what works for one person may not work for another, making a food diary and guidance from healthcare professionals, including dietitians, invaluable. By approaching your diet with caution and personalization, you can better navigate the challenges of a flare and support your body's healing process. For more detailed guidance, consider consulting reputable sources such as the Crohn's & Colitis Foundation.

Frequently Asked Questions

No, diet cannot cure a Crohn's flare-up. Dietary modifications are used to manage symptoms, support healing, and maintain proper nutrition during periods of active inflammation.

Many people with Crohn's become temporarily or permanently lactose intolerant. If dairy products trigger symptoms for you, it's best to avoid them during a flare. Consider lactose-free or plant-based alternatives fortified with calcium.

High-fiber foods, especially those with insoluble fiber like raw vegetables and nuts, can increase stool bulk and movement, which can worsen diarrhea, bloating, and abdominal pain in an inflamed gut.

Good snack options include bananas, peeled applesauce, plain crackers, smooth nut butters (without seeds), and low-fat yogurt (if tolerated).

It is generally advised to limit or avoid caffeine, as it can stimulate the bowels and increase the risk of diarrhea. Herbal teas like chamomile or ginger tea are better, more soothing options.

Eating smaller, more frequent, nutrient-dense meals can help. Examples include smoothies, soups, and lean protein snacks. Adding a little olive oil or avocado can also boost energy.

Yes, a food diary is highly recommended. It can help you track what you eat and identify your specific trigger foods, which can differ from person to person.

Yes, it is best to limit high-sugar foods and drinks, as concentrated sugar can worsen diarrhea and potentially contribute to inflammation.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.