At present, fast life has made fast food more and more popular. Fast food is very convenient and can save time. When you order in the fast food restaurant, the food will be delivered by the waiter soon. Moreover, the environment of the fast food restaurant is relatively clean and comfortable. However, in terms of nutrition, fast food does not provide balanced drinks, and its nutritional value is very low. It can not achieve a balanced diet. Usually, fast food is sugar, so eating fast food often will lead to obesity. Therefore, in most cases, I will choose formal restaurants. Formal restaurants have reasonable nutrition and low prices. There are more kinds of food in formal restaurants than fast food.