Guide · 2026
Eating out in Japan with a food-allergic child
Japanese restaurant staff are, in our experience, careful and willing to help. The problem is almost never attitude — it is that you cannot explain the allergy quickly, and that one ingredient hides almost everywhere. Here is how families handle it, and a free card you can print to do the explaining for you.
The one thing to understand first: dashi
Dashi is the basic Japanese soup stock, most commonly made from dried bonito — a fish — often with kelp. It is in miso soup. It is in noodle broth. It is in simmered vegetables, in sauces, in egg dishes, in things that arrive at the table looking entirely plant-based.
If your child's allergy is fish or shellfish, this is the single biggest practical risk of the trip, and it is the one that a casual "does this contain fish?" will not catch, because the staff member may not think of stock as fish. You have to ask about dashi by name. Our card does that for you in Japanese.
Show, don't speak
Saying an allergen in English, or in approximate Japanese, in a noisy restaurant, to someone who then has to relay it to a kitchen, is a long chain with several places to break. A written card removes the whole chain: the staff member reads it, and can carry it to the chef.
Our card is filled in on your phone or laptop and printed (or saved as a PDF). It states the allergens in Japanese, says plainly that the allergy is severe and that even a trace is dangerous, asks for the food to be prepared without those ingredients and for cross-contamination to be avoided, adds the dashi warning, and gives 119 as the emergency number. There is an optional line for an adrenaline auto-injector, which you should tick only if your child actually carries one.
Practical habits that make the week easier
- Print more than one copy. One in each adult's bag. Cards get left on tables.
- Ask before you sit down. It is much easier for a restaurant to say "we cannot do this safely" at the door than after your family is seated and the children have decided they live there now.
- Accept a "no" gracefully. A restaurant that says it cannot guarantee safety is being honest with you, and that is worth more than one that says yes to be polite.
- Use packaged food as your safety net. Convenience stores and supermarkets carry labelled packaged products, which are far easier to assess than a restaurant dish. Having a known-safe fallback meal removes most of the daily anxiety.
- Check labels rather than assuming. Japan requires allergen labelling on packaged foods, but the specific list and the way trace warnings are worded are not identical to your home country's, so read rather than pattern-match.
- Carry your child's medication with you, not in the hotel room, and know that 119 is the number for an ambulance.
What we are not going to tell you
We are not going to give you a list of "allergy-friendly restaurants in Tokyo". Kitchens change, staff change, and a two-year-old blog recommendation is exactly the kind of thing that gets a child hurt. The durable tool is the ability to ask clearly, anywhere, which is what the card is for.
This guide is general information for trip planning, not medical advice. Discuss your child's specific allergy and travel plans with their doctor before you go.
This guide uses AI-assisted, human-checked information. It can still make mistakes: confirm anything safety-critical yourself, and consult your child's doctor. Some links on this site are affiliate links.