Convenience is one key advantage of canteens and cafeterias. Students do not need to leave the school for their lunches, which allows more time for eating and means that parents do not need to rush to pack a lunch in the morning. Improving a student's overall nutritional health is another benefit. Schools that participate in the National School Lunch program are required to provide a complete and balanced lunch for students. According to the Food Research and Action Center, about 70 percent of students receive free or reduced-cost meals daily. Ensuring a student's nutritional needs are met improves behavior, school performance and cognitive development.