Hamburg is a kind of food that originated in Hamburg, Germany, and was introduced to the United States. American hamburgers improved by Americans are popular all over the world and are the main food in modern western fast food.

The earliest hamburgers were mainly composed of two buns and a beef pie. In modern hamburgers, besides beef patties or other patties (as long as they are fried or fried), there are butter, mustard, ketchup, salad dressing and so on. It is coated on the second layer of steamed stuffed bun, and then sandwiched with tomato slices, onions, vegetables, pickles and other foods, so that the main and non-staple foods can be eaten at the same time. This kind of food is convenient to eat, delicious and comprehensive in nutrition, and has now become one of the convenient staple foods in the world. Because hamburgers are high in calories and contain a lot of fat, they are not suitable for people who lose weight or people with hypertension and hyperlipidemia to eat too much.