Fast food is food that can help people save time and energy. Especially for those who have been busy. Why is it called fast food? Because it is prepared quickly, bought quickly and eaten quickly. But because it is too fast, it is not as healthy as those foods we usually eat. So, I think we can eat fast food when we are in a hurry or when we want to eat something else for a change. Therefore, I think fast food should not be our main food. Actually, I like Chinese food best. Because it is delicious and healthy.