How to Eat Out Low-FODMAP (Without the Bloat)
Updated August 2026
Restaurants are the hardest part of a low-FODMAP diet: the triggers hide in sauces, dressings, stocks and marinades you never ordered. Here is how to spot them and order around them.
Why eating out is so hard
Most restaurant gas comes from a few FODMAPs hidden in the background — onion and garlic in the sauce, wheat in the thickener, onion powder in the stock. The main dish often looks safe while the flavour base is the real problem.
The usual hidden culprits
Watch for garlic and onion (in almost every sauce, dressing, stock and marinade), wheat (breading, soy sauce, pasta, thickeners), and high-lactose dairy (cream sauces, cheese-heavy dishes). Onion and garlic catch people out the most.
How to order around them
Ask for dishes with no added sauce or dressing, or on the side. Choose grilled or plainly cooked proteins, plain rice or potatoes, and simple salads with oil and vinegar. Garlic-infused oil is usually fine — the FODMAPs are not oil-soluble — but garlic pieces are not.
Cuisines that are easier (and harder)
Easier: Japanese (plain rice, sashimi, grilled fish), simple grills and salad-based meals. Harder: sauce-heavy food — many Italian, Indian and Chinese mains lean on onion and garlic. You can still eat these; just choose the plainer options and ask.
Let the app do the spotting
Rumbelly reads a photo of your meal — or the restaurant menu — and flags the hidden onion, garlic, wheat and lactose a barcode scanner cannot see, so you can decide before you order.
FAQ
- Is garlic-infused oil low-FODMAP?
- Yes — the FODMAPs in garlic are not oil-soluble, so garlic-infused oil adds flavour without the fructans. Actual garlic pieces are high-FODMAP.
- What is usually the safest thing to order?
- A plainly cooked protein (grilled fish, chicken or steak) with plain rice or potatoes and a simple oil-and-vinegar salad, with any sauce on the side.
- Can I eat Italian or Indian food low-FODMAP?
- Often yes, if you choose the plainer dishes and ask about onion and garlic — but many sauces and curry bases are built on both, so check before ordering.
General information based on the low-FODMAP approach developed at Monash University — not medical advice. FODMAP tolerance is individual; check with a dietitian.