Considered a British dietary staple, it is possible to be allergic to either the white or yolk or an egg, or both. The allergy to eggs predominantly affects children, who are likely to already be allergic to other foods. Most children grow out of it by the age of five.
As well as avoiding eggs in their whole form, it is essential for sufferers to avoid any product containing egg. Besides cakes, desserts and mayonnaise, traces of egg can be found in some meat products and food in breadcrumbs.