It seems school children all over the world are not satisfied with their school food. Cherie Blair, the wife of Prime Minister Tony Blair, said that she would prepare a packed lunch for her son if school dinners do not improve. So what do students of your age eat for lunch at school? Japan High schools have dining halls, which serve everything from noodles to rice, but not hamburgers and chips. Other children bring food from home such as cold rice balls, meat or fish, and vegetables. The United States A common menu from a US school is made up of a hamburger with fried potatoes or roast chicken, fruit and cookies. School lunches must also provide food with protein ,vitamin A, vitamin C, ironand calories. Australia Meat piesand hotdogs are all traditional dishes in Australian school shops. But as the nation pays more attention to children's health, healthier foods have started to find their way onto school menus. Many schools have used a traffic light system. The sale of red-labeled   foods includingchocolate and soft drinks, is served only twice a week. Healthier green-labeled foods such as sandwiches, corn and watermelon, however are served every day. In some schools, students have a choice of up to 89 foods to choose from, including popcorn and rice. South Africa Most of South Africa's schools do not serve meals at all. Classes end at 1:30 pm and students get their own lunches. Many students bring food from home, usually sandwiches. Fast food and fried food sell the best among students, which has led to a rise in _ among children. But as more people began to realize the fact that being too fat may cause different illnesses, some schools in towns have led the way towards better nutrition . Now students at these schools are provided with lunches of porridge  with vegetables, such as cabbages, carrots and tomatoes. What is the main idea of the passage?
Food served in the US is the best of all. Schools should try to satisfy the needs of studemts. Schools serve different foods from country to country. School children all over the world dislike their school food.