Patients with lung adenocarcinoma can eat mutton, which is animal protein or fat and contains rich nutrition. Lung adenocarcinoma is a malignant tumor of lung, and the treatment of malignant tumor is mainly radiotherapy, chemotherapy or targeted therapy. Human body needs nutrition, and sufficient nutrition supply can meet the nutritional demand of human body for radiotherapy and chemotherapy. Mutton is animal protein, of course it can be eaten and has no effect on the condition of lung adenocarcinoma. There is no correlation between the recurrence and progression of lung adenocarcinoma and diet, so you can eat mutton.