On a restaurant's menu you can filter by dietary type, and see the allergens listed for each item. The menu and its allergen information are supplied by the vendor.
Allergens — important
Menus and allergen information are supplied by the vendor, and no vendor can guarantee that a dish is free from any particular allergen or ingredient. Vendors' kitchens and suppliers handle a wide range of allergens on site, so there is always some risk of cross-contamination, however carefully a kitchen is run.
If you have a severe allergy, we recommend that you don't place an order. Alternatively, please get in touch before you order. We can put your question to the vendor so you have as much information as possible, and you can decide from there whether you're comfortable going ahead.