There are trans fatty acids. Because trans fatty acids can improve the taste of food and the cost is very low, almost all kinds of food in foreign fast food contain trans fatty acids. The meat for hamburgers doesn't have to be fried. Hamburgers can be cooked, roasted or barbecued. Eating hamburgers is harmless to health. Hamburgers are healthy food. Hamburg is convenient to eat, delicious and comprehensive in nutrition, and has now become one of the convenient staple foods that sell well all over the world.