Checked July 2026Cuisine guide

Low-FODMAP Japanese food

Sashimi and simple nigiri are among the safest restaurant foods there are — pure fish and rice. The wheat is hidden in soy sauce, tempura, and noodles; tamari solves the soy-sauce part. Skip edamame (a bean) and the sweet teriyaki and eel sauces (garlic and onion).

You’re allowed to ask questions at a counter. A short, specific request — “is there onion or garlic in that?” — is normal, reasonable, and needs no medical backstory. The scripts below give you the exact words.
Pocket-sized: order, ask-for, and skip on one page.

Japanese order card

phasediet.com/eating-out/japanese

✓ Order

  • Sashimi
  • Nigiri and simple sushi
  • Steamed rice
  • Grilled fish or plain yakitori

~ Ask for a change

  • Soy sauce
  • Sushi rolls
  • Miso soup

✗ Skip

  • Ramen
  • Udon and tempura
  • Edamame
  • Teriyaki and eel / unagi sauces

Say this

  • Do you have tamari instead of soy sauce?
  • Sashimi and steamed rice, please — no spicy mayo.

Checked July 2026 — menus and recipes change, so confirm with staff. From phasediet.com/eating-out/japanese

What to order

These are the dependable low-FODMAP picks — and why each one is a safe bet.

Sashimi

Pure fish — naturally low-FODMAP.

Nigiri and simple sushi

Rice and fish; avoid onion and wheat-heavy sauces.

Steamed rice

A dependable low-FODMAP base.

Grilled fish or plain yakitori

Grilled protein — check the tare sauce for garlic and onion.

What to ask the kitchen to change

These can work — with one question or one small adjustment. Here’s exactly what to ask.

Soy sauce

Regular soy sauce contains wheat. Ask for tamari (wheat-free) if they have it; a small amount of regular is usually tolerated.

Sushi rolls

Skip rolls with onion, spicy mayo (garlic), or eel sauce (onion and garlic); stick to fish, cucumber, a little avocado, and plain rolls.

Miso soup

Usually fine (dashi, miso, tofu, wakame); ask whether it has onion.

What to skip

Not forever — most of these come back during reintroduction. During elimination, they’re the reliable triggers to leave off.

Ramen

Wheat noodles and a garlic-onion broth.

Udon and tempura

Wheat.

Edamame

GOS.

Teriyaki and eel / unagi sauces

Garlic, onion, and sugar.

The exact words to say

Specific beats vague every time. Most staff won’t know what “low FODMAP” means, but they can absolutely answer “is there onion or garlic in that?”

Do you have tamari instead of soy sauce?
Sashimi and steamed rice, please — no spicy mayo.

Good to know

  • Sashimi and simple nigiri are among the safest restaurant foods there are — pure fish and rice.
  • The wheat hides in soy sauce, tempura, and noodles; tamari solves the soy-sauce part.
  • Skip edamame (a bean) and the sweet teriyaki and eel sauces (garlic and onion).

More cuisine guides

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This guide is for general information only and is not medical advice. Menus, recipes, and kitchen practices change and vary by location, and FODMAP tolerances differ from person to person — always confirm with staff and go by your own experience. New to the diet? Start with our guide to the low-FODMAP diet.