Definition

Dietary requirements.

Dietary requirements are the food restrictions guests need the kitchen to respect — preferences such as vegetarian or vegan, religious rules such as kosher or halal, and medically critical allergies such as nuts, shellfish or coeliac disease — collected by count before the event and logged on the BEO.

Also called dietary notes or allergies, they are one of the few details on an event where a mistake can genuinely hurt someone. That is why good BEOs separate simple preferences from medically critical allergies, and give the kitchen exact counts rather than "a few vegetarians".

Types of dietary requirements

Not every requirement carries the same risk, and the kitchen handles each type differently. A guest who prefers not to eat meat needs a good alternative dish. A guest with a severe peanut allergy needs a dish made without peanuts, kept away from cross-contact, and served by someone who knows which plate it is.

TypeExamplesKitchen risk
Lifestyle preferenceVegetarian, vegan, pescatarianLow — a wrong dish disappoints but does not harm
ReligiousKosher, halal, no pork, no beefMedium — may need certified suppliers or separate prep
IntoleranceLactose, gluten sensitivityMedium — causes discomfort; needs ingredient control
Medical allergyPeanut, tree nut, shellfish, sesame, coeliac diseaseHigh — cross-contact can be life-threatening

In the US, nine major allergens cause most serious reactions: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soy and sesame.

How they are collected and passed on

Requirements are usually gathered with the RSVP or registration form, then confirmed with the final guarantee a few days before the event. On many events around one guest in ten asks for something, and conferences often see more. The BEO lists them by count — 14 vegetarian, 6 vegan, 2 nut allergy — with the medically critical ones flagged.

How they are served depends on the format. At a plated dinner each special meal is tied to a table and seat, often marked on the place card. At a buffet, every dish is labelled and guests with severe allergies are usually offered a separately plated meal, because shared serving spoons make cross-contact hard to avoid.

Common mistakes to avoid

  • Recording "allergies: yes" without saying what the allergy is or how severe.
  • Collecting requirements at RSVP but not re-checking them with the final guarantee.
  • Giving the kitchen counts but not seat or table numbers for a plated meal.
  • Treating gluten-free as a preference when the guest has coeliac disease.
Example. A 180-guest conference lunch has 30 special requests: 14 vegetarian, 6 vegan, 5 gluten-free (2 of them coeliac), 3 halal and 2 nut allergies — 16.7% of the room. The BEO lists 150 standard plates and 30 special meals by type and table, with the 4 coeliac and nut-allergy guests flagged as medically critical and served first. The venue builds the alternatives into its menu rather than adding a surcharge, so the lunch is billed at 180 × $42 = $7,560.

Related terms

FAQ

Dietary requirements — common questions.

What is the difference between a dietary preference and an allergy?
A preference, such as vegetarian or vegan, is a choice; getting it wrong disappoints the guest. An allergy is a medical condition; getting it wrong can cause a serious reaction. BEOs should flag allergies separately so the kitchen prepares those meals with extra care.
When should dietary requirements be collected?
Ask for them with the RSVP or registration, then confirm the final counts together with the final guarantee, usually 72 hours before the event. Late changes should go straight onto the BEO, not just into an email.
Do caterers charge extra for special meals?
Most do not charge extra for common requests such as vegetarian, vegan or gluten-free when they are planned in advance. Certified kosher meals or dishes bought in from a specialist supplier often carry a surcharge.
How are dietary requirements handled at a buffet?
Every dish is labelled with its main allergens and dietary type, and vegetarian or vegan options are placed so they are not contaminated by neighbouring dishes. Guests with severe allergies are usually served a separately prepared plate.

Dietary notes the kitchen can't miss.

In LightCater, dietary notes sit on the BEO and function sheet together with the menu, timing, room setup and staffing, so the kitchen and floor team work from the same counts on the night. Try it free for 14 days, no credit card to start.