How to Track Food Allergies at Your Event Sign-Up

You booked a caterer for 80 people, and three days before the dinner you get a text: "Did anyone mention they're allergic to shellfish?" You have no idea. Nobody asked the right question at sign-up, and now you are scrolling through email threads at 11pm trying to reconstruct who can eat what.

That scramble is avoidable. The fix is to collect dietary information at the moment people register, store it next to their name, and hand a clean summary to whoever is cooking. Here is the actual sequence.

Decide what you need to know before you build the form

Do not ask for everything. The more open-ended your question, the more you get answers like "I don't do heavy stuff" that tell you nothing useful for ordering food. Decide first whether you are dealing with allergies (a safety issue) or preferences (vegetarian, halal, kosher, low-carb). They need different handling.

For a sit-down dinner with plated meals, you usually need a meal choice plus an allergy flag. For a buffet or potluck, you mostly need to know which dishes must exist so nobody goes hungry, and which ingredients must be labeled. A 30-person Thanksgiving meal where two guests are gluten-free is a different problem than a 200-person conference lunch.

Write down the exact decisions the caterer or kitchen will make from this data. If a field doesn't change what gets cooked or labeled, leave it off.

Build the registration form so the allergy field can't be skipped

Add the dietary questions to the same form people already use to register. Splitting them into a second "survey" link guarantees half your guests never fill it out. If you are starting from scratch, an event signup sheet that already collects names and counts is the right place to attach these questions.

A structure that works for most dinners:

A required meal selection field with set options (for example, Chicken, Salmon, Vegetarian pasta). Set a maximum on each option if your kitchen needs hard counts so the spots fill and lock automatically.
A required yes/no question: "Do you have a food allergy or dietary restriction we need to know about?"
A short text field that only matters if they answered yes, where they name the allergy or restriction.

Keep the free-text box short and specific. Prompt it with "List any allergies (nuts, shellfish, dairy, etc.) or dietary needs." That phrasing pulls real answers instead of essays.

If the event is a potluck rather than a catered meal, flip the logic. You want contributors to label what they are bringing. A potluck signup form can ask each person to note allergens in their dish, so the guest with a peanut allergy can scan the list before filling a plate.

When you describe your event in plain language, the AI-powered signup forms builder can draft this whole structure in seconds, including the meal options and the allergy field, and you edit from there.

Make the form easy to answer in the moment

Most people register from their phone, often while doing something else. If the form makes them pinch and zoom, they rush the dietary section and you get garbage. Forms built for mobile-friendly signups open in any phone browser with no app to download, which matters because the people most likely to have a serious allergy are the ones who care most about answering it correctly.

Share the link directly. You can also generate a QR code for a printed invitation or a flyer at a community board, so a guest can register on the spot.

Collect, then check the responses as they come in

Responses land in your dashboard as people sign up, and you get an automatic email each time someone registers. Do not wait until the deadline to read them. Skim the allergy field every few days. You will catch the answers that need a follow-up: "severe" with no detail, or a restriction that conflicts with every meal option you offered.

This is where having the data attached to a real name pays off. You can message that one person to clarify without re-surveying everyone. Tools for managing your registrations keep each response tied to the person who submitted it, so a clarification is a one-line reply, not a detective project.

On the free plan you can view up to 30 responses per form on the site, and every response past that is still collected and stored. For a larger dinner, the Premium plan unlocks viewing all responses and exporting the full data set as a CSV.

Turn responses into something your caterer can use

Your caterer does not want a screenshot of a sign-up page. They want counts and exceptions. Export the responses to CSV, then build two short lists:

Meal counts: total chicken, total salmon, total vegetarian. This comes straight from the meal selection field.
The exception list: each name with a real allergy or restriction, the specific item, and which meal they chose. This is the list that prevents the 11pm text message.

Send both. Five guests with no nut, one severe shellfish allergy at table four, three vegetarians who also need it dairy-free. That level of detail lets the kitchen plate safely and label a buffet correctly.

If the kitchen labels a buffet, the exception list also tells them which station signs need an allergen note. For events with a check-in table, you can turn on a public response summary so volunteers can confirm a guest's meal choice without digging through a spreadsheet.

Keep the form for next time

Once a dinner runs cleanly, save the form as a template. The next event you plan starts from a structure you already know works, with the allergy field built in instead of bolted on at the last minute. A repeatable online signup sheet means you never rebuild the same dietary questions from memory again.

The whole point is that nobody should be reconstructing allergy data the night before. Ask the right question at registration, read the answers as they arrive, and hand the kitchen a clean list. Build the form once and it does the work every time.