How to Collect Dietary Restrictions When Guests RSVP

You are three days out from the party and suddenly realize you have no idea who is gluten-free, who has a nut allergy, and whether anyone is vegan. Now you are sending frantic group texts that half the guests will not see in time. The fix is simple: collect dietary needs inside the RSVP itself, so guests mention allergies and preferences at the same moment they confirm attendance. No separate form, no follow-up texts, no surprises.

Most hosts send a group text or follow-up email a week before the event asking about food restrictions. The problem is that this creates a second task guests have to remember. Some reply immediately, some forget, and others respond in a side conversation your co-host never sees. Embedding the question in the RSVP flow solves this because guests are already in "responding mode." They have the invitation open, they are confirming their attendance, and adding one more detail takes five seconds. Response rates jump from roughly 40-50 percent on a follow-up message to over 90 percent when the question is part of the original RSVP. It also keeps all the data in one place. Instead of piecing together texts, emails, and verbal mentions, you have every guest's dietary note attached to their RSVP on a single dashboard.

Vegetarian and vegan. Roughly 5 percent of U.S. adults identify as vegetarian, with about 3 percent vegan. At a 50-person event, expect two to four guests with plant-based diets. Vegan guests need dishes free of all animal products including dairy, eggs, and honey. Gluten-free. Celiac disease affects about 1 in 100 people, but many more avoid gluten due to sensitivity. For these guests, cross-contamination matters — a gluten-free pasta cooked in the same water as regular pasta is not safe. Nut allergies. Tree nut and peanut allergies are among the most common food allergies and can be life-threatening. If any guest mentions a nut allergy, make sure to communicate severity levels to your caterer so they can prevent cross-contact. Kosher and halal. These are religious dietary laws that go beyond ingredient lists. Kosher requires specific preparation and separation of meat and dairy. Halal requires permitted ingredients and specific slaughter methods. If multiple guests have these requirements, consider sourcing from a certified provider. Other common restrictions. Dairy-free, shellfish-free, soy-free, egg-free, and low-sodium diets are all frequent. Children's allergies are especially important — one in 13 children has a food allergy, so kids' parties need extra attention.

The way you phrase the question affects how many guests respond and how useful their answers are. Keep it short, specific, and inclusive. Here are prompts that work well:

Once RSVPs are in, your caterer needs the information in a format they can act on. Raw guest notes like "no gluten and also my kid is allergic to peanuts" need to be translated into actionable categories. Group by restriction type, not by guest. Instead of listing "Guest A: vegan, Guest B: nut allergy, Guest C: vegan," tell your caterer "3 vegan meals, 1 nut-free meal, 1 gluten-free meal." This is the format caterers are used to working with. Flag severity levels. A preference ("I try to eat gluten-free") is different from a medical need ("celiac disease — no cross-contact"). If guests mention severity in their RSVP notes, pass that along. Include a buffer. Plan for one or two extra restricted meals. Last-minute plus-ones or guests who forgot to mention a restriction will thank you for the foresight. A good rule of thumb is to add 10 percent to each restricted category.

JustInvite includes a dietary restrictions field directly in the RSVP flow. When guests tap Accept, Decline, or Tentative, they see a text field where they can note any food needs. There is no extra setup required — the field is part of the standard RSVP experience. On your host dashboard, each guest's dietary note appears alongside their RSVP status, adult and kids counts, and any personal message. You do not need to cross-reference a spreadsheet with a text thread — everything is in one place. Because the dietary field is embedded in the RSVP form rather than sent as a follow-up, the response rate is dramatically higher. Guests fill it out while they are already engaging with your invitation, which means fewer people to chase down later.