In a two year study of 85 Midwestern food makers, the FDA found one-fourth of the cookies, candy and ice cream sampled contain tiny amounts of peanut that were not disclosed on product labels. Ten percent of the foods sampled contained egg, also not on the label.
Both foods can trigger allergic reactions in some people. The effects can range from skin rashes to anaphylactic shock. About 150 people die annually in the U.S. from allergic reactions to food.
Industry officials say they will work with consumer groups and the FDA to improve food labeling.