Posted By Graham Bullough Just to add to Andy Barr's note just now, there are other foods which are not in the Food Standards Agency's list but nevertheless can cause a serious reaction if eaten by people who are allergic to them. For example my late mother in law was allergic to mushrooms and when eating out was always careful to ask waiters and servers about meal choices which might contain mushrooms. I never saw her suffer a bad reaction but sometimes she got given something which did contain mushrooms because the persons asked didn't understand food allergy issues and/or couldn't be bothered to go and ask the cooks preparing the food. On the same theme, a significant number of my employer's primary schools have one or more pupils who are allergic to listed foods, notably peanuts. The problem is greatest for very young pupils who may not be fully aware of which foods they must avoid. Also, their classmates may unwittingly offer them items which contain the things to be avoided. In order to manage such pupils and their allergies, relevant school staff are given clear information about the names and photos of who is allergic to what, plus what action needs to be taken in the event of an allergic reaction. To end on a hopeful note, I recently saw a brief newspaper article which suggested that medical researchers think they have found a method, or perhaps a more reliable method, by which people with some food allergies can be de-sensitised or at least have their sensitivity reduced. Perhaps others who are better informed about this aspect can expand on it.