Food can only provide energy and nutrition for the body, there is no medicinal effect to treat pulmonary fibrosis, so there is no pulmonary fibrosis is afraid of three kinds of food said. Pulmonary fibrosis is the end-stage lung changes of interstitial lung disease caused by many reasons, common causes include long-term inhalation of large amounts of dust, radiation therapy, rheumatic immune diseases, etc. The main manifestations are dry cough, progressive dyspnea, etc., which may also be accompanied by non-specific systemic symptoms such as loss of appetite, weight loss, emaciation, and fatigue. Due to the various causes of pulmonary fibrosis, doctors will treat patients with medication and surgery according to their actual condition and cause of the disease. Patients should quit smoking, eat more easy-to-digest and nutritious food, and exercise properly to improve immunity.