Where are eggs found?
Although allergic individuals may only be allergic to one portion of the egg, i.e., the yolk or the egg white, it's impossible to completely separate the two without cross-contamination. Thus, those with an egg allergy should be cautious with all parts of the egg.5
The following ingredients may indicate the presence of egg and should be avoided by egg allergic individuals:3,4 albumin, apovitellin, binder, cholesterol free egg substitutes, coagulant, dried egg solids, dried egg, egg, egg white, egg yolk, egg wash, eggnog, emulsifier, fat substitutes, globulin, lecithin, livetin, lysozyme, meringue powder, ovalbumin, ovoglobulin, ovomucin, ovomucoid, ovotransferrin, ovovitelia, ovoitellin, powdered eggs, silici albuminate, simplesse, surimi, trailblazer, vitellin, and whole egg.
Foods that may contain eggs include:4 baked goods, baking mixes, batters, bearnaise sauce, bouillon, breakfast cereals, cake flours, candy, cookies, creamy fillings, custard, egg noodles, eggnog, French toast, Hollandaise sauce, ice cream, lemon curd, macaroni, malted cocoa drinks (e.g., Ovaltine), marshmallows, mayonnaise, meringues, muffins, noodles, omelets, pancakes, processed meat products (e.g., bologna, meat loaf, meatballs, sausages), puddings, salad dressings, sherbets, souffles, soups, sweets (e.g., fondant creams, truffles), tartar sauce, Turkish delight, waffles, and wines.
Egg proteins may also be found in shampoos, cosmetics, and pharmaceuticals such as laxatives. In addition, frying surfaces can pose a cross-contamination risk. For example, if eggs are fried on a restaurant griddle, a burger fried on that same surface could be contaminated with egg protein if the grill wasn't cleaned properly.4 Some vaccines may also contain egg proteins that can cause serious events if egg allergic individuals are injected with these vaccines.10