Food Allergy Cards Guide

Sushi With Food Allergies: What to Ask Before You Order

10 min read • By Oliver ChiSeptember 9, 2026

A practical sushi allergy guide covering sauces, seafood, rice toppings, tempura, shared knives, conveyor belts, omakase, and restaurant scripts.

Table of contents

Quick answer: how do you order sushi with a food allergy?

Start with the ingredients that are easiest to miss: soy sauce and marinades, shellfish, sesame, wheat in imitation crab or tempura, egg-based sauces, and shared knives or boards. Ask the chef or server about the specific roll, sauce, garnish, and preparation surface. Do not assume that a simple-looking piece of fish was handled separately.

Tell the restaurant your exact allergy before ordering. Ask whether it can prepare a small set of items with clean tools, keep sauces separate, and explain which menu items it cannot verify. If the answer is uncertain, choose a different restaurant or skip the meal.

A Japanese food allergy card can help at a sushi counter, but it does not replace questions about that restaurant’s ingredients and workflow.

The roll name is not the complete ingredient list

A roll can contain fish, shellfish, imitation crab, mayonnaise, cream cheese, tempura, sesame, sauces, and toppings. A “vegetable” roll may still use a shared knife or mat. A spicy sauce may have an egg-based base or a packaged ingredient that the server needs to check.

Soy sauce deserves its own question when soy or wheat matters. Ask whether the sauce is served separately, what it contains, and whether the restaurant has a verified alternative. Do not dip a dish into a shared bottle if the ingredients or contact are uncertain.

What to check at the sushi counter

Menu areaWhat may need checkingQuestion to ask
Nigiri and sashimiFish or shellfish identity, garnish, knife, board, and serving plateCan the chef prepare this with a clean knife and separate plate?
Specialty rollsImitation crab, tempura, sesame, wheat, sauces, and mayonnaiseWhat is inside, on top, and in every sauce on this roll?
Soy sauce and marinadesSoy, wheat, fish, shellfish, and shared bottles or dishesWhat is in the sauce, and can I have a separately handled portion?
Tempura and fried foodsWheat, egg, seafood, and shared fryer oilWhat is the batter, and is the fryer shared?
Conveyor belts and buffetsShared plates, utensils, display contact, and unknown preparationCan you prepare a separate order directly from the kitchen?

Conveyor belts, omakase, and busy counters

Conveyor-belt service can make it hard to know which plates or utensils touched other foods. Ask whether the kitchen can prepare a separate order directly for the allergy request rather than selecting from the belt. Keep sauces and shared condiments away from the plate until you have checked them.

Omakase and tasting menus need advance notice because the chef controls the sequence and substitutions may not be possible. Contact the restaurant before booking, explain the exact allergy, and ask whether the chef can describe the menu and preparation. “We can remove one item” is not the same as being able to control every course.

At a busy counter, a short card is useful because the person taking the order and the person handling the knife may be different people. Wait for the handoff to happen before choosing a dish.

A simple sushi ordering script

Try: “I have a serious shellfish allergy. Could you show this card to the chef and tell me which items can be prepared with a clean knife, board, plate, and utensils, away from shellfish?” Then ask about each roll or piece you are considering.

If the restaurant says it cannot guarantee the meal, ask what it can verify. If the answer remains vague, thank the staff and leave. The purpose of a detailed question is to make a decision, not to pressure the restaurant into promising more than it controls.

For general restaurant scripts, read what to say to a waiter about food allergies.

Frequently asked questions

Is sushi safe for a shellfish allergy?

Some restaurants may be able to prepare fish-only items separately, but sushi counters often handle fish and shellfish with shared tools and surfaces. Ask the chef about the exact item and preparation before ordering.

Does sushi contain sesame?

Sesame may appear as seeds, oil, seasoning, or a sauce ingredient, but recipes vary. Ask about the roll, garnish, sauces, and shared utensils.

Does imitation crab contain shellfish or wheat?

Imitation crab products and recipes vary, and they may contain ingredients that matter for shellfish, fish, wheat, or other allergies. Ask the restaurant to check the product label and preparation.

Can I eat at a conveyor-belt sushi restaurant with allergies?

Ask whether the kitchen can make a separate order with clean tools and plate it directly. If the restaurant cannot explain how your food will be separated from the belt and shared equipment, choose another option.

Create your own food allergy cards in minutes

Use Food Allergy Options to generate clear, restaurant‑ready digital food allergy cards in multiple languages. Show them on your phone or download a printable PDF for your wallet.

Useful resources

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Sushi With Food Allergies: Soy, Shellfish, Sesame & Cross-Contact | Food Allergy Options