KFC and McDonald's are the most popular foreign fast food. KFC and McDonald's can give diners a sense of fat satisfaction by frying food. Moreover, KFC McDonald's, a foreign fast food, has relatively good sanitary conditions and consistent production standards, so it can also gain a good reputation. Of course, their prices are moderate, and they are often discounted, which can be accepted by most consumers.
Subway and McDonald's KFC are completely different products. Although it is also a foreign fast food, Subway pays more attention to healthy eating. Subway's main product is sandwich, which uses several kinds of bread, vegetables, meat and sauces to form a combination of various flavors. Subway sandwiches are low in calories and oil, giving people a low sense of satisfaction and a short-lasting satiety. Because its main ingredients are bread and vegetables, compared with its price, it makes people feel that the cost performance is very low. Moreover, if there is no sauce, only the original flavor of bread, vegetables and a little meat can not stimulate people's appetite too much.