Confirm the exact item; do not turn a partial answer into a guarantee

If columns are cut off, scroll sideways. Keyboard: focus the table, then use Left/Right Arrow keys.

EvidenceWhat it can establishWhat stays Unknown
Current packaged-food labelThe ingredients and declarations printed for that package under the applicable rule.Your medical risk, an unlisted trace, or a different batch.
Current provider answerOnly the exact ingredient or process the responsible provider actually confirms.Recipe changes, suppliers, substitutions and any question it cannot answer.
Card, icon or translated messageThe information communicated to the recipient.Understanding, kitchen transmission, capability and meal suitability.

This is a verification boundary, not medical advice. It does not decide personal tolerance, severity or treatment.

Use the current Japanese label for the exact packaged item

Japan's Consumer Affairs Agency says that, from 1 April 2026, cashew nuts moved into the mandatory specified-ingredient category for applicable container-packaged processed food. Under the two-year transition, the former rule may still be used for processed food other than business-use processed food manufactured, processed or imported by 31 March 2028, and for business-use processed food sold by that date. This is not a promise that every package already lists cashew nuts, nor a universal sell-through deadline.

During that transition, the absence of “cashew nuts” from a label does not prove that the item is suitable. Check the exact package under the current Japanese guidance. The older English communication sheet does not reproduce the current Japanese item set, so this page does not turn it into a supposedly permanent complete list.

Unknown: whether one packaged item is suitable for you. A required declaration, a recommended declaration and a personal avoidance list are not interchangeable.

Restaurant and non-prepackaged counter-sale answers are a separate evidence lane

Packaged-food labelling rules do not make every restaurant menu an exhaustive allergen statement. The Consumer Affairs Agency's consumer guidance says allergen-information provision for restaurants and food sold unpackaged at store counters is not legally required and is voluntary. That does not make missing information safe, and it does not classify every takeaway item the same way. Ask about the exact dish at the time you intend to order.

  • the named ingredient and every sauce, stock, garnish and seasoning;
  • substitutions or recipe changes for that service;
  • shared fryers, oil, grills, pans, utensils and preparation surfaces;
  • supplier or premade-component information the provider can actually verify; and
  • what the kitchen will do after receiving the request.

A provider may be able to confirm one fact and not another. Record the answered facts, but do not rename that partial result as “allergen-free”, “zero cross-contact” or “safe”.

Carry the exact answer from the responsible kitchen to the actual order

  1. Ask who checked the answer

    Tell the actual branch which dish and service you intend to use. Ask whether the reply was checked with the responsible kitchen staff, including purchased components, substitutions and cross-contact controls. A table reservation or a general chain reply does not prove the staff preparing this meal received or accepted the request.

    Source: Consumer Affairs Agency: restaurant and takeaway consumer guidance, July 2026

  2. Reconfirm before preparation begins

    At the meal, identify the requirement and the specific dish again. Reopen the question if ingredients, recipe, branch or staff understanding changed. Record which facts are answered and which remain unknown; do not promote a partial answer into “allergen-free” or a medical safety verdict.

    Source: Consumer Affairs Agency: restaurant and takeaway consumer guidance, July 2026

  3. An unclear answer is a reason to choose another arrangement

    The Consumer Affairs Agency advises against eating when the necessary information or concern remains unresolved. Do not taste a small amount as a test. Use the individual plan agreed with the clinician and arrange a checked alternative; a paid reservation, a vegan label or a previous uneventful meal does not establish suitability.

    Source: Consumer Affairs Agency: restaurant and takeaway consumer guidance, July 2026

  4. Keep the record precise and the emergency plan separate

    Keep the branch, date, dish and exact limits of the response in the appropriate private channel. Do not publish another person’s health details or certify the whole chain from one visit. If symptoms occur, follow the individual clinical emergency plan and seek urgent help rather than wait for online advice; use the existing emergency section below.

These integrated steps were checked on ; this is not a full re-review of the article. Earlier source dates and rules remain attached to their original scope.

Sources for these steps

A translation card or advance message communicates; it does not resolve the meal

The Consumer Affairs Agency provides an English food-allergy communication sheet, and a traveller may send an advance request. It is a communication aid, not a complete current allergen list and not a safety guarantee.

Those steps can help ask about selected ingredients, production lines and kitchen handling. They cannot prove that staff understood every point, that the message reached the kitchen, that the current recipe was checked, or that the kitchen can meet the request on the day.

If the responsible provider cannot answer a blocking question, use UNRESOLVED — DO NOT INFER. Choose a different item or plan rather than filling the gap from a card, icon, directory or past review.

Keep operational and cross-contact gaps visible as Unknown

The following remain Unknown unless the responsible current source confirms them for the exact item and time:

  • the individual restaurant's recipe, substitutions and supplier;
  • manufacturing-line, shared-oil, equipment and surface cross-contact;
  • staff comprehension and accurate transmission to the kitchen;
  • same-day capability and emergency procedure; and
  • personal tolerance, severity and medical outcome.

For the wider access-chain decision, use Will Japan Work for Me?. This page stays narrower: it records what was confirmed before ordering.

Use the existing emergency and insurance routes for their own purposes

This article does not classify a reaction or recommend treatment. For official emergency and visitor-help routes, use Japan emergency contacts. Medical-facility acceptance, language, route, price and payment remain Unknown until the responsible facility confirms them.

For policy questions, compare the boundaries in what Japan travel insurance should cover and whether you need travel insurance. Those articles do not guarantee an insurer result.

Official sources and what each confirms

Official sources and evidence boundary

  1. JapaneseOfficial current food-labelling guidance
    Consumer Affairs Agency: current food-allergen labelling rules

    Established: For applicable container-packaged processed food, the agency publishes current mandatory and recommended allergen-labelling categories and records cashew nuts moving into the mandatory category on 1 April 2026; the rule is not a restaurant capability or item-suitability guarantee.

    Checked
  2. JapaneseOfficial amendment and transitional provisions
    Consumer Affairs Agency: 1 April 2026 amendment and transition

    Established: The amendment took effect on 1 April 2026 and permits eligible general-use processed food manufactured, processed or imported by 31 March 2028, and eligible business-use processed food sold by that date, to use the former rule.

    Checked
  3. EnglishOfficial English communication material
    Consumer Affairs Agency: English food-allergy communication sheet

    Established: The checked sheet asks staff about selected allergens and places cashew nuts in the older recommended group rather than the current Japanese mandatory category.

    Checked
  4. JapaneseOfficial restaurant and takeaway guidance
    Consumer Affairs Agency: restaurant and takeaway allergy guidance

    Established: The July 2026 consumer material states that allergen-information provision for restaurants and food sold unpackaged at store counters is not legally required and is voluntary; it also keeps unintended allergen inclusion visible.

    Checked
  5. JapaneseOfficially published industry HACCP handbook
    Ministry of Health, Labour and Welfare: published food-service HACCP handbook

    Established: The Japan Foodservice Association handbook published by MHLW describes allergen cross-contact prevention and information-handling practices in food-service operations; it does not establish that an individual provider applies them or can meet a request.

    Checked
  6. EnglishOfficial visitor FAQ
    JNTO: visitor food-allergy FAQ

    Established: JNTO notes that not all restaurants and packaged foods display allergen information and directs travellers with serious allergies to make advance or direct checks; this general advice is not a source for the post-April 2026 legal item set.

    Checked
  7. EnglishOfficial visitor medical-information guide
    JNTO: Guide for when you are feeling ill

    Established: The guide provides the 119 emergency route and a medical-facility search; its basic facility information does not establish diagnosis, treatment, acceptance, language availability or price.

    Checked
Why we recommend this: decision evidence

Separate what was confirmed from what remains unresolved

A packaged label, provider answer and communication aid establish different things. None of them is renamed as a medical or safety guarantee.

If columns are cut off, scroll sideways. Keyboard: focus the table, then use Left/Right Arrow keys.

DecisionVerified findingSource basisWhat it changes for the traveller
Which food does the mandatory packaged-label rule cover?The current Consumer Affairs Agency allergen-declaration rule covers applicable container-packaged processed food; it does not establish a restaurant meal.Consumer Affairs Agency current food-allergen labelling rulesUse the current label for the exact package, and assess restaurant or non-prepackaged counter-sale food in its separate information lane.
Can the English material publish a complete current allergen list?No. Cashew nuts moved into the mandatory specified-ingredient category on 1 April 2026 with a two-year transition, while the checked English communication sheet still reproduces the older item set.Consumer Affairs Agency current rule, transition and English communication sheetUse the current Japanese rule for the exact package; through 31 March 2028, the absence of cashew nuts from an eligible older-compliant label is not proof of suitability.
Must restaurants and non-prepackaged counter sellers provide allergen information?No. Consumer Affairs Agency consumer guidance says allergen-information provision in those lanes is not legally required and is voluntary.Consumer Affairs Agency consumer guidance for restaurant and counter-sale foodDo not convert missing information into permission or proof; an unanswered blocking question remains Unknown.
What can an advance or direct check establish?Official visitor guidance recommends advance or direct checks, while the restaurant materials show that an answer or general control establishes only the exact fact currently confirmed.Consumer Affairs Agency, MHLW-published industry and JNTO guidanceRecipe, supplier, substitutions, shared oil or equipment and cross-contact remain Unknown when unanswered.
Does a card, icon or advance message prove the meal is suitable?No. It supports communication but does not establish comprehension, kitchen transmission or operational capability.The four addressable rules and recommendations aboveDo not order when a blocking condition remains unresolved, and do not describe the result as guaranteed or allergen-free.
Does this article decide medical severity or treatment?No. JNTO provides emergency and medical-information routes, while diagnosis, treatment and facility acceptance remain outside this article.JNTO medical-information guideUse the appropriate official emergency route for an urgent problem; do not use the page as medical advice.

This ledger records source-backed decisions, not personal experience. Field tests are labelled separately.

Review dates and complete update history

Editorial maintenance In schedule

What was checked and what changes next

First published
Reviewed
Next scheduled review
This review covered
Consumer Affairs Agency current labelling, transition and restaurant guidance; the MHLW-published industry HACCP handbook; and JNTO allergy and medical-information routes.
Latest material change
: Integrated the responsible-kitchen-to-order confirmation manuscript into the existing guide, with scoped source checks; earlier full-review dates and specialist conditions are retained.

Editorial responsibility

One accountable owner-editor

Japan, Booked. is owner-operated and edited from Japan. The same editor is responsible for the guide's Japanese- and English-language source checks, traveller-facing judgement and correction record. No unapproved personal name, biography or credential is being implied.

Public change log

Update history

  1. Integrated the practical next-step workflow

    Integrated the responsible-kitchen-to-order confirmation manuscript into the existing guide, with scoped source checks; earlier full-review dates and specialist conditions are retained.

  2. Rechecked the 2026 cashew-labelling transition

    Added the 2026 cashew-labelling transition, linked the official English communication sheet, and migrated the safety boundaries to addressable evidence.

  3. Published the food-allergy verification guide

    Added a noncommercial verification guide that separates packaged labels, provider answers, communication aids and unresolved food-allergy risk.

A material operator, organiser or product change triggers an earlier review. Reader reports are treated as leads and checked against the rule owner before publication. Read the update and correction policy. See every guide's review schedule. Suggest an improvement to this guide.

How we review

Visible sources.
Clear conditions.

Read the official sources behind each decision.

How we review