Dietary needs at a wedding: what the caterer actually needs from you

"We have a few vegetarians" is not information a kitchen can cook from. A caterer plates by seat, and every dietary need has to resolve to a specific plate at a specific place, or it doesn't reach the table it was meant for.

Ask once, specifically, at RSVP

The RSVP is the only point where you're guaranteed to hear from (almost) every guest, so it's the only reliable place to ask. A single free-text line plus checkboxes for the common categories, vegetarian, vegan, gluten-free, a nut or other severe allergy, covers most of what a kitchen needs without turning the card into a questionnaire. Save the free-text line for anything that doesn't fit a checkbox: a severe allergy worth flagging in its own words, or a request that needs more than a category to explain.

Ask it by name, per guest, not per household. "Any dietary restrictions?" on a card meant for a family of four produces one vague answer covering people with different needs; asking meal choice and dietary needs against each named guest is what lets the answer resolve to individual plates later.

The difference between a preference and an allergy

A kitchen treats these differently, and so should your list. A preference (vegetarian, doesn't eat red meat) changes what's on the plate. A genuine allergy, especially a severe one, changes how the kitchen handles it: separate prep surfaces, sometimes a different course entirely, and it's the one category worth a follow-up message rather than trusting a checkbox alone. If a guest flags a severe allergy, a short direct message ("just confirming, is this a full allergy or a strong preference, and how serious") is not overkill. It's the question a good caterer will ask you anyway, and it's faster to have already asked it yourself.

What "final numbers" actually means to a caterer

Not a total headcount. A breakdown by meal choice and dietary category, matched to names, delivered by the date in your catering contract, usually one to two weeks out. A caterer working from "180 guests, roughly 15 vegetarian" has to guess which 15; a caterer working from a named list plates correctly on the first pass. The gap between those two is the difference between a smooth service and a scramble at the kitchen door mid-meal.

If your reception is plated rather than a buffet, this matters even more, because the server at each table needs a per-seat guide, not a general awareness that "some of this table is vegetarian."

Handling the late allergy

Someone will flag a dietary need after the deadline, often the week of the wedding, and the honest answer is that it's not always accommodable at that point, depending on your caterer's prep schedule. Tell the guest that directly and kindly rather than promising something you can't confirm, and pass it to your caterer immediately regardless: some kitchens can adjust with 48 hours' notice, some genuinely cannot, and only they know which.

Getting it from a list to the kitchen

The list you actually need is one column of dietary needs sitting next to the guest's name, meal choice, and eventually their table and seat, so the whole thing exports as one document rather than three lists you have to reconcile by hand. The RSVP tracker captures dietary needs at the same moment it captures the meal choice, against each named guest, which is what turns "we have a few vegetarians" into a list your caterer can actually cook from. If you haven't built the guest list yet, that starts at the guest list tracker, which the RSVP tracker reads directly so nobody's name gets typed twice.

Frequently asked questions

When should I ask guests about dietary restrictions?

At the RSVP stage, which is the one point almost every guest responds to. Ask it per named guest, with a short checkbox list for common categories and a free-text line for anything else, rather than one general question aimed at a whole household.

What's the difference between a dietary preference and an allergy for catering purposes?

A preference (vegetarian, no red meat) changes what's served. A genuine allergy, especially a severe one, changes how the kitchen prepares it, sometimes with separate surfaces or an entirely different course, and is worth a direct follow-up message rather than a checkbox alone.

What does my caterer actually need from my guest list?

A breakdown of meal choice and dietary needs by name, not a total count, delivered by the final-numbers date in your contract. A plated dinner needs this per seat; even a buffet benefits from knowing the real numbers per category rather than a guess.

What if a guest tells me about an allergy after the RSVP deadline?

Pass it to your caterer immediately and be honest with the guest that it may not be fully accommodable this late, depending on the kitchen's prep schedule. Some caterers can adjust with a couple of days' notice; only they can say for certain.