While not required under current EU regulations, many food manufacturers and retailers have decided to voluntarily label products that contain nuts, including peanuts to inform people suffering from peanut allergy. The most difficult area to control is in a restaurant or catering establishment where non-packaged food is not labelled for the consumer. In these situations, consumers should always ask if there are peanuts or peanut products in the recipe when ordering. If any doubt remains, that food or location should be avoided.