Low FODMAP Restaurant Ordering: Japanese Korean and Thai Food Guide

May 24, 2026

Low FODMAP Restaurant Ordering: Japanese, Korean, and Thai Food Guide

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

Key Takeaways

Asian restaurants can be excellent for IBS-friendly dining — rice-based cuisines, grilled proteins, and clear broths are naturally low FODMAP. But hidden garlic, onion, soy sauces with wheat, and FODMAP-rich condiments make careful ordering essential.
Japanese cuisine is often the safest Asian option for IBS: sushi, sashimi, grilled fish, and plain rice are inherently low FODMAP. Korean and Thai can work with modifications.
The biggest Asian restaurant FODMAP traps: garlic (used universally), onion, wheat-based soy sauce, kimchi (high FODMAP due to garlic/onion), coconut milk in large amounts, and sweet sauces with HFCS.

Japanese Restaurants

Safe Choices

✅ Sashimi — Fresh raw fish. No FODMAP concerns. Request plain soy sauce (GF tamari) or bring your own.
✅ Sushi (simple rolls) — Salmon, tuna, shrimp, or cucumber rolls. Rice + fish = safe. Limit soy sauce (wheat) or use GF tamari. Avoid cream cheese rolls (lactose) and spicy mayo (often contains garlic).
✅ Edamame — Low FODMAP at 1/2 cup. Excellent starter.
✅ Grilled fish (yakizakana) — Plain grilled salmon, mackerel, or sea bass with rice.
✅ Teriyaki chicken/salmon — Ask if teriyaki sauce contains garlic. Simple teriyaki (soy + mirin + sugar) can be tolerated.
✅ Steamed rice — Always safe. Order extra.
✅ Miso soup (small bowl) — Miso paste is low FODMAP in typical soup portions. Skip if it contains lots of tofu (moderate FODMAP in large amounts) or seaweed salad with onion.

Avoid

❌ Gyoza/dumplings (wheat wrappers + garlic filling)
❌ Tempura (wheat batter)
❌ Ramen (wheat noodles + garlic-heavy broth)
❌ Tonkatsu (breaded pork)

Korean Restaurants

Safe Choices

✅ Bibimbap (modified) — Rice bowl with assorted vegetables and egg. Ask for: plain rice, grilled meat (bulgogi without the marinade or light marinade), egg, and steamed vegetables. Skip the gochujang if it contains garlic (most do).
✅ Grilled meat (galbi/bulgogi) — plain — Ask for unseasoned grilled meat. Korean BBQ restaurants let you grill your own meat — you control the marinade. Bring garlic-infused oil or just use salt and sesame oil.
✅ Steamed rice — Always available.
✅ Japchae (glass noodles) — Sweet potato noodles are low FODMAP. The sauce typically has soy + sesame + sugar. Ask about garlic.
✅ Korean pancake (pajeon) — with modifications — Ask for one without scallion whites (green parts only are low FODMAP). Rice flour versions are better than wheat.

Avoid

❌ Kimchi (garlic + onion — high FODMAP)
❌ Fermented bean paste stews (doenjang jjigae — high FODMAP due to garlic, onion, and potentially high amounts of soybean paste)
❌ Tteokbokki (rice cakes in gochujang — garlic)

Thai Restaurants

Safe Choices

✅ Pad Thai (modified) — Rice noodles are FODMAP-safe. Ask for no garlic and light on the sauce. Shrimp or chicken. The tamarind-based sauce can work if garlic is minimized. Fish sauce is safe.
✅ Grilled chicken (gai yang) — Often marinated in simple lemongrass, fish sauce, and pepper. Ask about garlic.
✅ Steamed jasmine rice — The foundation of Thai meals.
✅ Tom yum soup — Lemongrass, lime, galangal, chili. The clear version (tom yum) is safer than the creamy version (tom kha, which uses coconut milk). Ask for no garlic.
✅ Spring rolls (fresh, not fried) — Rice paper wraps with vegetables and shrimp. Check the dipping sauce for garlic.
✅ Stir-fried vegetables with chicken/shrimp — Ask for garlic-infused oil instead of raw garlic (explain that oil-infused garlic is okay but chopped garlic is not).

Avoid

❌ Green and red curry (garlic + onion in curry paste, large amounts of coconut milk)
❌ Massaman curry (onion-heavy)
❌ Larb (often contains shallots/onion)
❌ Most dipping sauces (garlic-based)

Universal Asian Restaurant Tips

Call ahead: "I have a garlic and onion sensitivity. Can the chef prepare my dish without garlic and onion?" Most Asian restaurants accommodate this readily.
Bring GF tamari: A small travel bottle of GF tamari (soy sauce without wheat) solves the soy sauce problem universally.
Garlic-infused oil trick: If you explain to the restaurant that you can have garlic oil but not garlic pieces, some kitchens will accommodate. The fructans in garlic are water-soluble, not oil-soluble — so garlic-infused oil has the flavor without the FODMAPs.
Rice is your anchor: Every Asian cuisine is rice-based. When in doubt, order plain rice and a simple protein.
Take enzymes before the meal: Even with careful ordering, restaurant food often contains hidden garlic. Enzymes provide a safety net.

🛒 Dining Out Essentials

Digestive Enzymes — The non-negotiable dining-out companion. Restaurant kitchens cannot fully eliminate garlic and onion — cross-contamination is inevitable. Pop two enzymes before every restaurant meal. The alpha-galactosidase specifically targets the fructans from hidden garlic and onion.
FODMAP Enzymes + Probiotics — For frequent diners: the daily probiotic component builds resilience against occasional FODMAP exposure. Regular probiotic use reduces the severity of reactions when hidden FODMAPs slip through — meaning a restaurant mistake doesn't ruin the next day.

Medical Disclaimer: This article is for educational purposes only. Restaurant menus and recipes vary. Always communicate your dietary restrictions clearly and check with your server about specific ingredients. Dr. Adegbola is the founder of Casa de Sante.

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