In terms of diet for invasive lung adenocarcinoma, it is enough to pay attention to a healthy diet according to Chinese dietary and nutritional guidelines. The onset and progression of invasive lung adenocarcinoma are not related to diet, so there is no special dietary requirement. According to the Chinese dietary and nutritional guidelines, dietary attention should be paid to the intake of high-quality protein, fresh vegetables and fruits. For example, pay attention to increase the intake of food such as eggs and beef to increase protein; carrots, celery, tomatoes, apples, bananas and other intake, which helps to increase the intake of vitamins, fiber and trace elements. Pay attention to reduce the intake of high-fat, spicy and stimulating foods; for example, fried foods, pepper, chili peppers and so on.