How to use an allergy card in a restaurant

Carrying an allergy card is only half the job. How and when you hand it over decides whether the kitchen actually plans around your allergies — or whether the card sits unread under your menu.

This is a practical guide to using an allergy card in a restaurant, from the moment you arrive to the moment your food lands.

Before you sit down

If you’re booking ahead, mention your allergy to the restaurant when you reserve. Most kitchens prefer a heads-up so they can prep ingredients separately, and a quick call lets you find out whether they’re equipped to handle severe allergies before you turn up.

For walk-ins, just have your allergy card ready in your wallet, phone, or pocket so you can produce it as soon as you’re seated.

Step 1 — Hand the card over on arrival

The single biggest mistake is waiting until you order. By that point, the kitchen has often started prep, the waiter is moving on autopilot, and your allergy gets handled as a verbal addendum.

Hand the card to the host or waiter as soon as you sit down. Say something like:

“I have a serious food allergy. Here’s a card listing what I need to avoid — please pass it to the chef so they can let me know what’s safe.”

Doing this before you order means the kitchen has time to think. They can flag which dishes are off-limits, which need substitution, and which need a clean prep surface for severe allergies.

Step 2 — Ask the kitchen to confirm

A good restaurant will come back to you with three pieces of information:

Which dishes are definitely safe — straightforward, no allergen anywhere in the ingredient list or prep area
Which need adjustments — e.g. swapping a sauce, leaving out a garnish, using a separate fryer
Which they can’t do safely — usually because of shared equipment or hidden allergens

If you don’t get this kind of detailed response, push gently. “Can you check with the chef whether the [dish] contains [allergen] or shares a prep surface with anything that does?” is a fair question, and any kitchen that takes allergies seriously will answer it.

Step 3 — Keep the card visible

Leave your card on the table — face-up, ideally near where the waiter places dishes down. Two reasons:

Shift changes. If you ordered with one server and a different one delivers your food, the second person may not know about your allergy unless the card prompts them.
Cross-checking. It’s easier for the runner to glance at your card than to interrupt and ask “you’re the nut allergy, right?”

If you’re nervous about a particular dish, ask the person delivering it to confirm that the chef has checked it. A second confirmation costs ten seconds and catches mistakes.

Step 4 — When the food arrives

For severe allergies, a quick visual check makes sense:

Does the plate match what you ordered?
Is anything visibly different from how you’d expect (an unexpected garnish, sauce drizzle, etc.)?
For coeliac and severe wheat allergies, is the bread/crouton/pastry definitely absent?

If anything looks off, ask before eating. Restaurants want to know now, not after.

Severe allergies and cross-contamination

For severe or anaphylactic allergies, the card alone isn’t enough — you also need to flag cross-contamination risk. Most allergy cards include a line like “Please use clean utensils, surfaces, and a clean fryer” for exactly this reason.

Verbal reinforcement matters too. The phrase “I need this prepared on a clean surface with utensils that haven’t touched [allergen]” is direct and gives the kitchen something concrete to act on.

If you carry an EpiPen, mention it. Not as a threat, but as a signal that this isn’t a mild preference — it’s a medical risk. Anaphylaxis UK publishes guidance on speaking up about severe allergies in restaurant settings if you’d like more detail.

Travel and language barriers

Abroad, the card matters even more. Even a friendly waiter can’t help if they can’t understand what your allergens are called in your language. AllergIQ translates your card into dozens of languages so you can hand over a clear, locally-written version — see card translations and our printed chef cards for travel-ready options.

A translated card paired with the phrase “I have a severe allergy” in the local language (even badly pronounced) is usually enough to get serious attention.

What if the restaurant refuses?

Occasionally a restaurant will say they can’t safely accommodate your allergy. This is a good thing. A restaurant that knows its limits and admits them is safer than one that says “yeah, sure, we’ll figure it out” without checking.

In that case:

Thank them for being honest
Leave, or order something obviously safe (a packaged drink, a piece of whole fruit) if you’d rather stay with your group
Note the restaurant — useful to know which places to avoid for severe allergies

What if something goes wrong?

If you have a reaction, report it. The Food Standards Agency publishes a record of allergy-related food safety incidents, and incident reports help drive better practice across the industry. We surface the latest FSA alerts on the AllergIQ allergy alerts page.

The simple version

If you remember nothing else:

Hand over the card before you order, not with your order
Ask the kitchen to confirm what’s safe
Keep the card visible until the food arrives
For severe allergies, mention cross-contamination explicitly
Carry a translated card for travel

Allergy cards work — but they work best when the kitchen has the information early. Get it into their hands the moment you sit down, and most of the rest takes care of itself.