Ask about dietary needs and label dishes

Ask in private before assigning dishes

Invite guests to tell the host what they need before you confirm the menu. Ask which ingredients they avoid and what information or preparation arrangements they need. Do not ask them to disclose a diagnosis to the whole group. Let them decide what you can share with a contributor, and keep the conversation focused on the meal.

A preference, food intolerance, allergy or religious requirement may lead to different questions. Avoid putting each need under one vague "special diet" label. Confirm the practical plan with the guest instead of deciding that a dish sounds suitable from its name. If a guest prefers to bring their own food, make room for that arrangement without pressure to try other dishes.

Keep the actual ingredient information

Ask contributors for the ingredients used, including prepared sauces, dressings, stocks, garnishes and last-minute substitutions. Keep the original product packaging available. A handwritten summary helps, but it can miss something hidden inside a purchased ingredient. Read current labels each time instead of relying on what the same brand contained at a previous gathering.

The FDA identifies nine major US food allergens: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. People can react to other foods too. Use the guest’s stated needs and complete ingredient information; a check of these nine names is not a guarantee that a dish is suitable for everyone.

Use clear labels, with honest limits

Put the dish name, ingredients used and contributor’s first name beside the serving dish. Describe substitutions with care. "Made without added milk ingredients; prepared in a shared home kitchen" communicates more than "allergy safe". Do not use a free-from claim when you cannot verify it. A label helps a conversation; it does not certify the preparation process.

UK readers should use the relevant UK guidance. The Food Standards Agency’s current business guidance covers 14 regulated allergens, a different list from the US nine. Those are food-business requirements and should not be presented as a complete legal checklist for a private gathering. Neither jurisdiction’s priority list captures each individual dietary need.

• Include sauces, toppings and prepared ingredients in the information.
• Update the label if the recipe or a product changes.
• Keep original packaging available for guests to inspect.
• Say when preparation or ingredient information is uncertain.

Plan the table as well as the recipe

Agree how the host will store, serve and identify a guest’s food when it needs to stay separate from the general menu. Give each dish a dedicated serving utensil, and ask guests not to swap utensils between bowls. Do not assume that removing a visible topping settles an allergy concern or that a vegetarian label answers questions about milk, egg or other ingredients.

Before guests eat, check that labels still match the dishes and that the contributor can answer questions. If information is missing or uncertain, say so and do not encourage someone to take a chance. For allergy management, guests should follow their own clinician’s advice. PotluckTime’s planner records menu notes; it does not evaluate ingredients, diagnose allergies or guarantee that a dish is safe for a particular person.