Food can provide nutrients to the body, but it does not have the effect of medicine, some ways such as scientific and rational diet, moderate exercise and quit smoking, etc., for lung health has certain benefits. Food can provide nutrients for the body’s daily functioning, and some nutrient-rich foods have higher nutritional value for the body, such as fresh fruits (pears, loquats, grapes, etc.), and protein-rich foods such as fish, beef, eggs and milk. Eating a light and regular diet, not consuming moldy food, and abstaining from alcohol are good for lung health. Quitting smoking can reduce the irritation of harmful gases to the trachea, bronchial tubes and other tissues, and can also reduce the probability of smoking-induced malignant tumors, which is beneficial to the organism’s lungs. In addition, it is recommended to eat a reasonable diet under the guidance of a nutritionist and to ensure a moderate amount of exercise, which is beneficial to the health of the lungs.