Eating out · Thai
Low FODMAP at Thai Restaurants
Thai food's biggest FODMAP problem is invisible: garlic and shallots are pounded into curry pastes, marinades, chili jams, and dipping sauces before service, so they never appear as removable pieces — and coconut milk adds a ladleful of polyols to every curry and creamy soup. The upside is a naturally rice-based backbone (jasmine rice, sticky rice, rice noodles) and a flavor arsenal — lemongrass, galangal, makrut lime, chili, lime juice, fish sauce, tamarind, palm sugar — that is largely low-FODMAP. Because wok dishes and salads are built to order, "no garlic, no onion/shallot" requests are more honorable here than in most cuisines, as long as you steer clear of anything paste-based.
✅ Safest picks
Kai Jeow (Thai Omelette) over Jasmine Rice
One of the plainest things on a Thai menu: beaten egg seasoned with fish sauce, fried crisp, served over steamed jasmine rice. Egg, rice, and fish sauce are all low-FODMAP, and there's no paste, no sauce pool, and usually no aromatics at all.
💬 Order it: Order it plain or with minced pork (moo sap) — ask them to skip any onion or scallion mixed into the egg. Skip the Sriracha on the side, which typically contains garlic.
Chicken Satay (skewers only, sauce on the side)
The skewer itself is coconut-milk-and-turmeric marinated grilled chicken — the coconut milk clinging to a skewer is a small amount, and lemongrass/coriander seasoning is low-FODMAP. The peanut dipping sauce and the cucumber relish (ajad, made with shallots) are where the trouble lives.
💬 Order it: Ask for the peanut sauce and cucumber relish on the side and leave them; some marinades include a little garlic, so ask, but the surface-level amount on grilled skewers is far lower than in a sauced dish. Pair with plain jasmine or sticky rice.
Pad Thai (no garlic, no shallot)
Rare good news: the classic pad thai sauce is tamarind, palm sugar, and fish sauce — all low-FODMAP — over rice noodles with egg, peanuts, and bean sprouts. The only stir-fry aromatics are a small hit of garlic/shallot that a made-to-order wok dish can genuinely leave out.
💬 Order it: Ask for it 'no garlic, no shallot' and skip any sweet preserved radish if you're being strict. Confirm they use the traditional tamarind sauce, not a bottled sweet-chili or ketchup-style shortcut, which can carry garlic and fructose-heavy syrups.
Gai Yang (Grilled Chicken) with Sticky Rice
Grilled marinated chicken with sticky rice is a street-food staple that's structurally simple: the marinade (cilantro root, pepper, fish sauce, palm sugar, usually some garlic) sits on the surface and mostly renders off on the grill, and sticky rice is plain glutinous rice.
💬 Order it: Ask how heavy the marinade is on garlic; the dipping sauce (jaew or sweet chili) is the real risk — sweet chili sauce is garlic- and often syrup-based, so take it dry with a squeeze of lime instead.
Khao Pad (Thai Fried Rice), no garlic no onion
Fried rice is normally a garlic-and-onion dish, but it's wok-made to order from plain components — day-old rice, egg, protein, fish sauce/soy — so the aromatics can actually be omitted rather than fished out. Thai fried rice leans on fish sauce more than soy, keeping wheat exposure minimal.
💬 Order it: Say 'no garlic, no onion, no shallot' explicitly (all three — shallot is the default Thai aromatic). Ask for scallion greens only if they garnish it, and choose chicken or shrimp over Chinese sausage versions.
Som Tam (Green Papaya Salad) made without garlic
Green papaya, lime, chili, palm sugar, fish sauce, and peanuts are all low-FODMAP-friendly — and because som tam is pounded fresh in a mortar for each order, the couple of garlic cloves that normally go in first can simply be left out.
💬 Order it: Ask for no garlic and easy on the cherry tomatoes; skip versions with extra dried shrimp paste sauces. If green beans in it bother you, ask for fewer — a few pods are generally fine.
⚠️ Skip these
Thai Green Curry (and Red/Panang/Yellow Curries)
Every Thai curry starts from a paste in which garlic and shallots are pounded to a puree — they cannot be removed on request — and the dish is then simmered in a bowl-sized portion of coconut milk, a significant polyol load. 'It's just chicken and vegetables' is the trap; the base itself is the problem.
Massaman Curry
Shares the garlic-and-shallot paste plus heavy coconut milk of all Thai curries, then adds a signature garnish of whole roasted nuts — often cashews — and big pieces of stewed onion and potato. It reads as the mildest, most comforting curry on the menu, which is exactly why it catches people out.
Tom Yum Soup
A clear, citrusy broth looks like the safest thing on the menu, but standard tom yum is finished with nam prik pao — a roasted chili jam whose base is garlic and shallots — and loaded with straw or button mushrooms. The creamy version adds evaporated milk or coconut milk on top.
Good to know
- •Treat curry paste as an automatic no: red, green, yellow, panang, and massaman pastes all have garlic and shallots ground into them before the restaurant ever opens, so no modification is possible — pick wok dishes and grills instead of anything called a curry.
- •Wok dishes and pounded salads are made to order, so 'no garlic, no onion, no shallot' is a request the kitchen can genuinely honor — name all three, because shallot is the default Thai aromatic and often isn't mentally filed under 'onion' by staff.
- •Ride the rice backbone: jasmine rice, sticky rice, and rice noodles (pad thai, pad see ew noodles) are naturally wheat-free — the wheat that does appear hides in fried spring-roll wrappers, egg (ba mee) noodles, and soy-sauce-heavy gravies.
- •Lean on the naturally safe flavor core — fish sauce, tamarind, palm sugar, lime, lemongrass, galangal, fresh chili — and be suspicious of anything glossy and pre-made: sweet chili sauce, nam prik pao chili jam, and peanut sauce are all garlic/shallot vehicles, and bottled sweet sauces can add fructose-heavy syrups.
- •Coconut milk is a portion game: a marinade or drizzle is a small dose, but a curry or tom kha where coconut milk IS the broth means a full bowl of polyols — order coconut-based things as sides or shared tastes, not mains.
- •Watch the garnish layer: crispy fried shallots on rice and soups, raw shallot slivers in larb and yum salads, and scallion whites scattered over noodle dishes — ask for them off or scallion greens only.
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Scan a menu — freeMenus and recipes change; scores reflect typical preparations and published FODMAP research. Informational only — not medical advice. Always confirm ingredients with restaurant staff.