Johnston & Jeff EMP EggfoodEMP Egg food is a Broadly Based Well Balanced Soft Egg caged bird food for Cage and Aviary Birds EMP is Blended with the Finest Quality ingredients including real egg EMP has been Scientifically Formulated to provide all the Minerals, including Selenium, a necessary mineral often lacking in other egg foods, Vitamins and other Nutritional requirements necessary for ensuring your caged birds good health