Nutrition in Crohn’s Disease
What you eat can help support your overall well-being and ease symptoms — especially during flare-ups.
Two nutrition approaches
Non-therapeutic diets
General everyday recommendations
- Not part of a specific treatment
- Can help maintain remission
Therapeutic diets
Part of the medical treatment plan
- Shown to reduce inflammation and support healing
- Can lead to remission
- Examples: EEN and CDED
Non-therapeutic diet — general recommendations
Mediterranean diet
- Fresh fruits and vegetables — e.g. berries, peeled apples, spinach, zucchini
- Non-saturated fats — e.g. olive oil, avocado, fatty fish like salmon or sardines, nuts (if tolerated)
- Complex carbohydrates — e.g. oats, brown rice, sweet potatoes, whole-grain bread
- Lean proteins — e.g. chicken, fish, eggs, tofu, lentils
- Limit processed foods and sugar — e.g. fast food, soda, packaged snacks
Therapeutic diets
EEN — Exclusive Enteral Nutrition
EEN is sometimes used as a treatment during flare-ups. The constant flow of formula helps the body absorb nutrients and reduces stomach pain.
- Administered as a drink (formula) — or through a nasogastric tube (a small tube gently inserted through the nose into the stomach) if drinking the daily amount isn’t manageable
- Only liquids/formula for several weeks, then solid foods are slowly reintroduced under your medical team’s guidance
CDED — Crohn’s Disease Exclusion Diet
CDED can be combined with a formula/liquid diet as “partial enteral nutrition” (PEN). Specific foods are excluded or limited, and the diet is structured in phases — your medical team and nutritionist will guide you through which foods are included and how the phases work for your situation.
Nutrition during a flare-up
Eating and drinking enough during a flare-up can be difficult. Focus on foods that are easy to digest, high-calorie, and nutrient-rich — your body needs more of them during flare-ups.
✅ What to eat during a flare-up
- White bread
- White rice
- Eggs
- Fish
- Chicken
- Well-cooked vegetables without seeds or skin
- Fruits without seeds or skin (e.g. peeled banana or apple)
⚠️ What to limit or avoid during a flare-up
- Whole grains
- Processed food
- High-fiber vegetables (e.g. broccoli, cabbage)
- Fatty or fried foods (e.g. fried chicken, heavy sauces)
- Spicy foods (if they bother you)
How strict to be depends on how strong your flare is — your medical team or nutritionist can help you find the right balance.
If gaining weight is difficult, your team may suggest supplementary enteral nutrition or high-calorie shakes.
