What to eat during a Crohn's flare: foods people often tolerate, and why
Lists of foods to avoid are everywhere. What people in a flare usually need is the other list: what they can actually eat. Here are the foods people with Crohn's commonly report as easier, the reasoning behind them, and how to keep enough going in.
· 6 min read · Educational, not medical advice
When a flare hits, eating can start to feel like a gamble. It is tempting to stop eating altogether, or to live on crackers for a fortnight. Neither tends to help: your body needs more energy and protein when the gut is inflamed, not less. The aim during a flare is modest — find food that is easy to face and easy to digest, keep fluids up, and keep enough calories and protein going in until things settle.
There is no single flare diet that research has shown works for everyone with Crohn's. Expert guidance, including the ESPEN guideline on nutrition in IBD, recommends individual advice with a dietitian rather than one plan for all. What follows is the pattern many people report finding easier — a starting point to test against your own experience, not a rulebook. If you want the other half of the picture, see foods that commonly worsen a Crohn's flare.
The principles behind flare-friendly food
- Soft over tough. Cooked, peeled and mashed is usually easier than raw, skin-on and crunchy.
- Lower fiber, for now. Less bulk and less insoluble fiber means less mechanical work for an irritated gut.
- Moderate fat. Large, greasy meals are a common complaint; a little fat for cooking is usually fine.
- Small and often. Five or six small meals tend to sit better than three large ones.
- Fluids first. If output is high, drinking enough matters more than any individual food.
The NIDDK's page on eating with Crohn's makes a similar point: during a flare, some people find that changes such as smaller meals or a short spell of lower-fiber food help with symptoms, and a care team can help tailor this.
Foods people often find easier
This table compares what people commonly report tolerating during active symptoms with what they commonly struggle with. Individual responses vary a lot, and your own log is the better judge.
| Food group | Often easier during a flare | Often harder during a flare |
|---|---|---|
| Grains | White rice, white pasta, white bread or toast, plain crackers, cream of rice, refined cereals | Wholegrain bread, bran cereals, brown rice, popcorn, seeded bread |
| Protein | Eggs, skinless chicken or turkey, white fish, salmon, tofu, smooth nut butter | Tough or fatty cuts, fried meat, sausages, nuts and seeds whole |
| Vegetables | Well-cooked, peeled carrots, squash, potatoes without skin, courgette without seeds, strained vegetable soup | Raw salad, sweetcorn, peas, broccoli stalks, mushrooms, anything with tough skins |
| Fruit | Ripe banana, melon, peeled and cooked apple or pear, smooth applesauce | Dried fruit, berries with seeds, citrus segments, fruit skins |
| Dairy | Whatever you already tolerate — for some that is yogurt or lactose-free milk | Large amounts of milk if you are lactose intolerant |
| Drinks | Water, oral rehydration solution, weak tea, diluted juice, broth | Alcohol, lots of coffee, fizzy drinks, very sugary drinks |
Dairy is a particularly individual one. Lactose intolerance is more common in people with small-bowel Crohn's, but it is not universal, and cutting dairy you tolerate removes an easy source of protein and calcium. Our guide to dairy, lactose and Crohn's explains how to tell the difference in your log.
Simple meal ideas
- Breakfast: scrambled eggs on white toast; cream of rice with mashed banana; smooth yogurt if dairy suits you.
- Lunch: chicken and white rice soup; a baked potato without the skin with tuna; plain pasta with a little olive oil and soft cooked courgette.
- Dinner: baked white fish with mashed potato and peeled, well-cooked carrots; tofu with rice and soft-cooked squash.
- Snacks: crackers with smooth peanut butter; applesauce; a ripe banana; a cup of broth.
Chewing thoroughly and eating slowly helps too. If you have a known narrowing (stricture), your team may give you specific texture advice — follow theirs over anything general, including this page.
Fluids and rehydration
Diarrhea loses salt and minerals as well as water, which is why plain water alone is not always enough during a heavy flare. Oral rehydration solutions, available at pharmacies, are designed to replace both. Sipping steadily through the day tends to work better than drinking a lot at once. Dark urine, dizziness when you stand up, and a dry mouth are signs you are falling behind.
Protein, calories and weight
Inflammation increases how much energy and protein your body uses, at exactly the time your appetite drops. Unintended weight loss during a flare is common and it matters: it is a symptom worth reporting, not a side effect to put up with. If you are losing weight, eating very little, or relying on a handful of foods for more than a week or two, that is a good reason to ask for a referral to an IBD dietitian. They may suggest nutritional drinks to top up what you can manage.
For some people, especially children and teenagers, a gastroenterology team may discuss a liquid nutrition treatment called exclusive enteral nutrition. It is a clinician-led treatment with specific instructions, not something to attempt on your own, but it is worth knowing it exists so you can ask about it.
Why flare eating is meant to be temporary
A soft, low-fiber pattern is a short-term tool for a sore gut. It is not a diet for life, and staying on it for months can narrow your nutrition and make reintroducing food feel frightening. In remission, broader advice applies: the AGA's 2024 update on diet in IBD suggests a Mediterranean-style diet, rich in a variety of fruit, vegetables and whole foods, is reasonable for most people with IBD, while people with strictures may need to adjust texture and fiber.
When symptoms settle, add foods back one at a time and watch what happens. Building a safe-foods list in remission walks through how, and the low-residue diet, explained covers when a longer fiber restriction is genuinely advised.
Symptoms that need same-day care
Contact your IBD team, an urgent care service or the emergency department the same day if you have severe or worsening abdominal pain, a swollen abdomen with vomiting and no stool or gas passing, heavy rectal bleeding, a fever, signs of dehydration you cannot correct, or you cannot keep fluids down. These are not problems to manage by changing what you eat.
What to ask your team
- Should I be eating lower fiber right now, and for how long?
- Do I have a narrowing that means I should avoid particular textures?
- I have lost weight — can I see a dietitian, and would nutritional drinks help?
- When should I start adding foods back, and in what order?
- At what point should I call you rather than wait for my next appointment?
This guide is educational and not a substitute for advice from your own care team.
Quick answers
- What foods are easiest to eat during a Crohn's flare?
- Many people find soft, low-fiber foods easier: white rice, pasta and toast, eggs, skinless chicken, white fish, tofu, smooth nut butter, ripe bananas, applesauce, and well-cooked peeled vegetables. Tolerance is individual, so it helps to log what you eat and how it sat.
- Should I stop eating during a flare?
- Generally no. Your body needs more energy and protein when the gut is inflamed. Small, frequent meals of foods you can face are usually better than not eating. If you cannot eat or drink enough, contact your care team.
- How long should I eat a low-fiber diet after a flare?
- Usually only while symptoms are active, unless your team has advised otherwise, for example because of a stricture. Once things settle, reintroducing foods one at a time helps you widen your diet again.
- Is it normal to lose weight during a Crohn's flare?
- It is common, but it is worth reporting. Unintended weight loss is a symptom your team will want to know about, and a dietitian can help you keep enough calories and protein going in.
Crohn's Food Tracker is educational support and a self-tracking tool. It is not a medical device and does not provide medical advice, diagnosis or treatment. Always talk to your gastroenterologist or care team before changing your diet, medication or treatment. If you have severe pain, persistent bleeding, a high fever or signs of obstruction, seek urgent care.