What Is a Food Allergy Card and Why Do You Need One in Japan?
A food allergy card is a printed or digital card written in Japanese that clearly lists your food allergies and asks restaurant staff to avoid those ingredients. In Japan, you need one because the language barrier makes verbal communication about allergies unreliable and potentially dangerous. Japan recognizes 29 official food allergens — 9 mandatory and 20 recommended, as of 2026-04-01 — regulated by the Consumer Affairs Agency (消費者庁). Even if you speak some Japanese, allergy-related vocabulary involves specialized terms that most language learners never encounter. A bilingual allergy card eliminates ambiguity: you hand it to your server, they show it to the kitchen, and the kitchen can tell you which dishes avoid those ingredients. TravelSafe Japan offers a free allergy card generator that creates a professionally formatted, print-ready card covering Japan's 9 mandatory allergens, with a free-text field for any of the 20 recommended ones. Generate yours at the allergy card section on our homepage before your trip.
Why Verbal Communication Fails in Japan
Relying on spoken Japanese (or English) to communicate food allergies at restaurants in Japan is risky for several reasons:
- Language barrierAccording to the EF English Proficiency Index, Japan consistently ranks in the "low proficiency" band for English. Outside major hotels and international chain restaurants, English-speaking staff are uncommon. Even staff who speak some English may not know allergy-specific terms.
- Specialized vocabularyFood allergy communication requires terms like "buckwheat" (そば/蕎麦), "shellfish" (甲殻類), and "tree nuts" (木の実). These are not standard phrasebook words. Mispronunciation or confusion between similar-sounding foods can have serious consequences.
- Cultural communication styleJapanese service culture emphasizes accommodation. Staff may say "daijoubu" (it's fine) to avoid confrontation, even when they are unsure about ingredients. A written card shifts the communication to a verifiable, kitchen-level check.
- Hidden ingredientsMany Japanese dishes contain allergens that are not obvious. Dashi (stock) contains bonito fish and sometimes soy. Miso contains soy. Tempura batter contains wheat and eggs. Verbal questions about "the main ingredient" can miss these hidden components.
- Staff turnover and kitchen communicationEven if your server understands your verbal request, the information must be accurately relayed to the kitchen. A physical card can be taken directly to the chef, eliminating the telephone-game problem.
What Makes a Good Allergy Card
Not all allergy cards are equally effective. A well-designed card for Japan should meet these criteria:
- Bilingual formatBoth Japanese and English (or your native language). The Japanese text is for the restaurant staff; the English is for you to verify what the card says.
- Covers Japan's 29 allergensJapan's allergen classification system is unique. A card designed for Europe or the US may miss Japan-specific categories like buckwheat (そば), yamaimo (mountain yam), or gelatin (ゼラチン).
- Clear visual layoutAllergens should be listed as individual, readable items — not buried in a paragraph. Kitchen staff need to scan the card quickly during a busy service.
- Polite Japanese phrasingThe card should use respectful language (丁寧語) and include standard phrases like "食物アレルギーがあります" (I have food allergies). Rude or overly casual phrasing can create an awkward dynamic.
- Print-friendly formatPhone screens crack, run out of battery, and are hard to read in dim izakaya lighting. A card that can be printed on paper or cardstock is more reliable. The ideal size fits in a passport holder or wallet.
- Severity indicationSome cards distinguish between severe anaphylaxis-risk allergies and milder intolerances. This helps kitchen staff prioritize and decide whether a separate cooking area is needed.
How to Use Your Allergy Card at a Restaurant
Having a card is step one. Using it effectively requires understanding Japanese restaurant etiquette:
- Present it earlyHand the card to your server as soon as you are seated, before ordering. Say "Sumimasen, shokubutsu arerugii ga arimasu" (すみません、食物アレルギーがあります) — "Excuse me, I have food allergies." Then hand over the card.
- Let the staff take it to the kitchenDo not be alarmed if the server takes your card away. They are likely showing it to the chef or manager. This is actually the ideal outcome — it means the information is reaching the person who prepares your food.
- Be patientThe kitchen may need a few minutes to check ingredient lists, especially for sauces, broths, and pre-made components. This is normal and a sign they are taking your allergies seriously.
- Confirm when the food arrivesWhen your dish is served, you can point to the card and ask "Kore wa daijoubu desu ka?" (これは大丈夫ですか？) — "Is this okay?" A final confirmation reduces the chance of miscommunication.
- Carry multiple copiesIf you are dining at several restaurants in one day, having extra printed copies prevents the awkward situation of asking for your card back mid-meal.
- Convenience stores and packaged foodYour allergy card is less useful for convenience store (konbini) purchases, where packaged food labels are your primary defense. Learn the label wording in How to Read Japanese Food Allergy Labels.
Free vs Paid Options Compared
Several allergy card solutions exist for Japan travelers. Here is an honest comparison:
- TravelSafe Japan (free) — Generates a bilingual allergy card covering Japan's 9 mandatory allergens, plus a free-text field for other restrictions. You select your allergens from a visual picker, and the AI generates a properly formatted Japanese card. Free with no account, up to 5 cards a day. Print-friendly design with a red header matching Japanese medical card conventions.
- Equal EatsA dedicated allergy card company. Cards cost $8-12 per language. Pre-made templates cover common allergies. Well-designed physical cards shipped to you. Limitation: fixed templates may not cover all 29 Japanese allergens, and customization is limited.
- Handwritten cardsSome travelers write their own cards using Google Translate. This is free but risky: machine translation of medical/food terms is unreliable, and grammatical errors can cause confusion.
- Hotel conciergeMany higher-end hotels will write an allergy card for you in Japanese. Quality depends on the individual concierge's knowledge. This is free but inconsistent and not available at budget accommodations.
- Allergy translation apps (various) — Several apps offer allergy phrase translation. Quality varies widely. Most do not cover the full 29 Japanese allergens, and many use generic translations not specific to Japanese food culture.
Generate Your Free Allergy Card Now
The TravelSafe Japan allergy card generator is available on our homepage. Select your allergens from the visual picker — it covers Japan's 9 mandatory allergens (walnut and cashew are grouped under tree nuts), and you can type in any other restriction, such as one of the 20 recommended allergens. The AI generates a bilingual card formatted for printing, with a clean design that restaurant staff recognize as a medical allergy card.
The card is free and needs no account. You can make up to 5 cards a day — enough for different allergy combinations or for travel companions.
Generate your card now at the allergy card section on our homepage — print it before you fly, and carry it in your passport holder throughout your trip. It could be the most important thing you pack.
Sources
- Consumer Affairs Agency — Food allergy labelling (Japanese)9 mandatory and 20 recommended allergens (as of April 2026)
- Consumer Affairs Agency — April 1, 2026 notice (cashew becomes mandatory, pistachio added) (Japanese)Cashew moved to the mandatory list; transition period to March 31, 2028
Sources checked: September 24, 2026
Researched and fact-checked by the TravelSafe Japan team against the sources above. AI tools helped with drafting; every rule, number and date was checked by an editor. General information, not legal or medical advice. Spotted an error? Tell us · How we verify