Eating in Japan with food allergies is doable, but it takes preparation. Packaged food is a genuine strength — 9 allergens are labeled by law and konbini shelves are safe. Restaurants are the weak spot: no disclosure law, and dashi (fish stock) hides in nearly everything. Carry a Japanese allergy card, learn a few phrases, lean on convenience stores, and treat a severe reaction as a medical, insurance-backed scenario.
How hard is it to eat in Japan with food allergies?
It depends on the allergen. Packaged food is manageable: the 9 mandatory allergens are declared clearly, and convenience stores are among the safest places to self-cater anywhere. Restaurants are harder — there is no allergen law, staff often confuse an allergy with a preference, and fish-based dashi is nearly universal. A milk or egg allergy is workable; a severe fish, shellfish or nut allergy needs constant vigilance and a written card.
Cross-contamination is the other trap. Shared fryers, communal teppan grills and one soy-sauce brush for every dish mean 'it doesn't have the ingredient in it' is not the same as 'it's safe'. If your reactions are severe, plan to combine konbini food, a handful of allergy-aware restaurants, and a room with a fridge or kettle so you're never forced into a risky meal.
Which allergens must be labeled on Japanese packaged food?
Japan's Consumer Affairs Agency mandates labeling for 9 'specified' allergens (tokutei genzairyo) on all packaged food: egg (tamago), milk (nyu / gyunyu), wheat (komugi), buckwheat/soba, peanut (rakkasei), shrimp (ebi), crab (kani), walnut (kurumi) and cashew (kashu-nattsu). Cashew is the newest — it was promoted from the recommended list to mandatory on 1 April 2026, but the transition period runs to 31 March 2028, so until then some products still will not name it. Walnut has been mandatory since 2023 and fully enforced from March 2025. These appear in a bolded box at the end of the ingredients or in parentheses after each ingredient.
Beyond those, 20 more allergens are 'recommended' but not legally required: soy (daizu), sesame (goma), fish varieties like salmon (sake) and mackerel (saba), plus almond, pistachio, macadamia, beef, pork, chicken, squid, salmon roe, abalone, orange, kiwi, apple, peach, banana, yam and gelatin. The list moves: matsutake was dropped in 2024, macadamia added the same year, pistachio added in 2026 when cashew graduated to the mandatory list. Big brands list these; small regional makers may not. If your allergen is on the recommended list — sesame and soy are the common ones for travelers — do not trust the absence of the word alone on unbranded products.
What hidden ingredients should I know about?
Four staples hide allergens in dishes that look safe. Dashi — the base stock in miso soup, simmered vegetables, tamagoyaki and many sauces — is usually bonito (skipjack tuna) flakes, so it carries fish. Standard soy sauce (shoyu) is brewed from soybeans and wheat, so it is both a soy and a wheat/gluten source; nearly every brown sauce, teriyaki glaze, ponzu and tonkatsu sauce is built on it. Miso is fermented soybean. And sesame oil (gomaabura) flavors countless dishes.
A few more to watch: surimi (imitation crab) in salads and sushi rolls contains fish and often egg and wheat; furikake rice seasoning frequently contains fish, sesame and soy; and 'vegetable' broths are often dashi-based, not truly vegetarian. The single most useful habit: assume dashi and soy sauce are present unless a label or a briefed cook tells you otherwise.
What Japanese phrases should I use, and what goes on an allergy card?
In a noisy restaurant, a written card beats spoken Japanese every time — hand it over and the server can take it to the chef. The core spoken line is “Watashi wa ___ no arerugi ga arimasu” (‘I have a ___ allergy’). To ask if a dish contains it: “Kore ni ___ wa haitte imasu ka?” (‘Does this contain ___?’). To request it left out: “___ nuki de onegaishimasu” (‘Without ___, please’). For a serious allergy, state severity — a mild 'I don't like it' gets treated as a preference, not a medical risk.
Copy the block below and save it as a screenshot on your phone — it is your allergy card. Fill in your allergens using the Japanese terms from the table further down, and show it before you order. If your reaction is anaphylactic, keep the last line so staff understand it is life-threatening, not a preference.
ALLERGY CARD — copy / screenshot this
すみません、食物アレルギーがあります。
(Excuse me, I have a food allergy.)
次の食材を食べることができません：＿＿＿
(I cannot eat the following: ___ [insert your allergens in Japanese].)
少量でも重篤なアレルギー反応を起こします。調理器具や油の共用も避けてください。
(Even a small amount causes a severe reaction. Please also avoid shared utensils and cooking oil.)
ご確認いただけますか？ありがとうございます。
(Could you please check? Thank you very much.)
Traveling alone makes the card even more important, since you have no one to double-check the order — our solo travel guide covers the wider safety habits worth building before you go.
Where is the risk highest, and how do I order safely?
The riskiest settings are traditional, low-flexibility kitchens: small izakayas, ramen and soba shops, okonomiyaki and teppanyaki counters, kaiseki restaurants and street stalls. Sauces are batch-made in the morning, grills and fryers are shared, and staff may simply decline (“Sumimasen, dekimasen” — ‘sorry, we can’t’) rather than risk it. Accept that gracefully; a refusal is often the kitchen protecting you.
To order safely: lead with the written card, ask specifically about dashi and soy sauce, and ask whether fried items share oil (“Onaji abura de agete imasu ka?”). Lean on konbini and supermarkets for guaranteed-label meals, book accommodation with a fridge or kettle, and seek out allergy-aware or vegan restaurants in big cities. The same 'ask early, ask in writing' logic that works for ryokan meals — see our vegetarian ryokan guide — applies to allergies too.
| Allergen | Japanese term | Where it typically hides |
|---|---|---|
| Fish | sakana / 魚 (dashi: だし) | Dashi stock in miso soup, simmered dishes, tamagoyaki, sauces, furikake, surimi |
| Shrimp | ebi / えび | Tempura, dashi, seasoning salts on edamame, shared fryers, some senbei |
| Wheat | komugi / 小麦 | Soy sauce, ramen/udon noodles, tempura batter, tonkatsu and yakisoba sauces |
| Soy | daizu / 大豆 | Soy sauce, miso, tofu, edamame, many marinades and dressings |
| Egg | tamago / 卵 | Tamagoyaki, mayonnaise, breaded fry (katsu), some breads and ramen toppings |
| Milk | nyu / 乳 | Butter rolls, cream sauces, some curry roux, sweets and pastries |
| Peanut / tree nut | rakkasei / 落花生 ・ kurumi / くるみ ・ kashu-nattsu / カシューナッツ | Some sauces (goma-dare), sweets, dressings; walnut and cashew are both mandatory on labels (cashew since April 2026, transition to March 2028) |
| Sesame | goma / ごま | Sesame oil, goma-dare, dressings, furikake, sprinkled on many dishes |
Frequently asked questions
How do I say my allergies in Japanese at a restaurant?
Use “Watashi wa ___ no arerugi ga arimasu” (‘I have a ___ allergy’) and “Kore ni ___ wa haitte imasu ka?” (‘Does this contain ___?’). But do not rely on speaking it alone in a busy room. Save a Japanese allergy card as a screenshot, hand it over, and let staff take it to the chef. State severity for a serious allergy so it isn't treated as a preference.
Can I eat safely at konbini like 7-Eleven and FamilyMart with a nut allergy?
Yes, more safely than at most restaurants. Packaged konbini food must declare the 9 mandatory allergens (including peanut, walnut and cashew) in the ingredients, so you can read before you buy. Cashew only became mandatory on 1 April 2026 and its transition period runs to 31 March 2028, so do not assume every pack names it yet. Onigiri, plain sandwiches, salads and many bento are workable. Other tree nuts — almond, pistachio, macadamia — are only on the 'recommended' list, so scan the full ingredient panel with a camera-translation app and check for cross-contamination warnings.
What is dashi and why does it matter for a fish or seafood allergy?
Dashi is the stock underpinning almost all Japanese cooking, usually made from bonito (skipjack tuna) flakes, so it contains fish. It hides in miso soup, simmered vegetables, tamagoyaki, many sauces and even some 'vegetable' dishes. For a fish or seafood allergy it is the single hardest thing to avoid. Always ask specifically whether a dish uses dashi, rather than assuming a veg dish is fish-free.
Does bread in Japan contain egg or milk?
Often, yes. Japanese milk bread (shokupan) and many soft rolls and pastries contain milk, and some contain egg. Egg and milk are both mandatory-label allergens, so packaged bakery items list them clearly — check the panel. In-store bakeries without packaging are riskier; ask directly. Plain rice, onigiri and rice-based snacks are usually the safer carbohydrate if you react to egg or dairy.
Can I bring an EpiPen into Japan?
Generally yes for personal use. Japan's health ministry (MHLW) allows travelers to bring up to a one-month supply of prescription medicine, and up to a one-month supply of injectables in pre-filled syringe or self-injection kit form — the category an adrenaline auto-injector falls into — without advance paperwork. Above those quantities you must apply for a 'Yunyu Kakunin-sho' import certificate before you fly. Carry it in hand luggage (never checked — cargo temperatures degrade epinephrine) with your original prescription clearly in your name, and confirm the current rules on the MHLW site or with a Japanese embassy before departure, as they change. Replacing an EpiPen locally is difficult, so bring what you need.
How do I avoid cross-contamination with a severe shellfish allergy?
Assume shared surfaces. Teppan grills, okonomiyaki plates and deep fryers are communal, so residual crustacean protein is common even in a dish without shellfish listed. Your allergy card should explicitly ask them to avoid shared oil and utensils. Favor kitchens that can commit to a clean pan, lean on packaged konbini food, and accept a polite refusal — it usually means they cannot guarantee safety.
