IBS and Travel: How to Manage Digestive Issues on International Trips

IBS and Travel: How to Manage Digestive Issues on International Trips

By Dr. Onikepe Adegbola, MD PhD — Johns Hopkins-trained physician-scientist and founder of Casa de Sante

Before the Trip

Research and Planning

• Restaurant research: Google "low FODMAP restaurants [destination]" or "gluten-free [destination]." Many cities have FODMAP-aware restaurants or at minimum gluten-free options that overlap with FODMAP-safe choices.
• Accommodation: Book a room with a kitchenette if possible. Even a mini-fridge and microwave give you the ability to prepare safe meals when restaurant options fail.
• Grocery stores: Locate the nearest grocery store to your accommodation. In most countries, you can find rice, bananas, eggs, and plain chicken — the universal safe foods.
• Bathroom mapping: Download the "Flush" or "SitOrSquat" app to find public bathrooms at your destination. Knowing where bathrooms are reduces anxiety, which itself reduces IBS symptoms.

Pack Your Safety Kit

• Digestive enzymes (enough for every meal of the trip)
• Probiotics (daily use throughout the trip)
• Loperamide (Imodium) — for emergency diarrhea situations
• Peppermint oil capsules — for acute cramping
• Electrolyte packets — for rehydration if diarrhea occurs
• Ginger chews or ginger tea bags — for nausea
• Safe snacks: rice cakes, nut butter packets, protein bars (check FODMAP content), dried banana chips
• A heating pad (travel-sized, USB-powered) — for abdominal pain

During Travel

Flying

• Book an aisle seat. This is non-negotiable for IBS patients. Bathroom access without climbing over strangers reduces anxiety immeasurably.
• Bring your own food. Airplane food is unpredictable and often high FODMAP. Pack: a rice-based meal, safe snacks, and a protein bar. You can bring solid food through security (just not liquids over 3.4oz).
• Hydrate: Cabin air dehydrates you → harder stools → constipation (or dehydration-triggered diarrhea in IBS-D). Drink water throughout the flight.
• Avoid carbonated drinks: Cabin pressure + carbonation = bloating. Stick to water, ginger tea, or herbal tea.
• Move: Walk the aisle every hour on long flights. Sitting compresses the abdomen and slows motility.

Jet Lag and Circadian Disruption

• Your gut has its own circadian rhythm. Crossing time zones disrupts gut motility patterns → constipation or diarrhea for 2-5 days.
• Strategy: shift meal times to the new time zone as quickly as possible. Eat breakfast at local breakfast time, even if your body thinks it's 3 AM. This resets the gut clock faster than waiting.
• Melatonin (0.5-1mg at local bedtime) helps reset the sleep clock and has secondary benefits on gut motility.

Eating Abroad

• The safe order protocol: In any restaurant, anywhere in the world, you can usually get: grilled/roasted meat or fish + plain rice or potatoes + a simple vegetable or salad with olive oil and lemon. This combination works in virtually every cuisine.
• Learn key phrases: "No garlic, no onion" in the local language. In many cultures, explaining a medical need gets better accommodation than a preference.
• Street food caution: If street food is part of the destination experience, choose items you can see being freshly prepared. Hot food, freshly cooked, is safest. Avoid buffets, pre-made salads, and items sitting at room temperature.
• Water safety: In countries with questionable water quality, use bottled water for drinking AND brushing teeth. Avoid ice in drinks. This prevents traveler's diarrhea from compounding IBS.

Traveler's Diarrhea + IBS

• Traveler's diarrhea (TD) from contaminated food/water is a separate condition from IBS — but it hits IBS patients harder and can trigger prolonged post-infectious IBS flares.
• Prevention: wash hands frequently, eat hot freshly cooked food, avoid raw vegetables washed in tap water, use bottled water.
• If TD occurs: rehydration is priority #1 (oral rehydration salts). Loperamide for symptom control. If fever or bloody stool develops, seek medical care (may need antibiotics).
• Post-travel: if GI symptoms persist more than 2 weeks after returning, see your GI doctor. Post-infectious IBS can develop and may need specific treatment.