Fast foods are quick, reasonably priced, and readily available alternatives to home cooking. While convenient and economical for a busy lifestyle, fast foods are typically high in calories, fat , saturated fat , sugar, and salt. The fast food chains and restaurants have responded to the increasing awareness of the public about nutrition and attempted to help people concerned about health. For example, they now make ingredient and nutrition information available on their menus. Despite these changes, however, in order to maintain a healthy diet, it is necessary to choose fast foods carefully.