Vinegar does not have any therapeutic efficacy for people with lung nodules, but patients with lung nodules can consume vinegar in moderation without allergies, and it will not cause harm. Lung nodules are usually focal, round, dense shadows found on imaging during a physical examination, and common clinical factors that can cause lung nodules include long-term inhalation of dust through the nose and mouth, long-term smoking, and Mycobacterium tuberculosis infection, in addition to inflammation of the lungs and lung cancer can also cause lung nodules. If it is caused by pneumonia, anti-infection treatment is needed; for tuberculosis-induced nodules, standardized anti-tuberculosis treatment should be given; and if it is caused by tumors, it is necessary to closely observe whether the nodules have increased in size. For malignant lesions such as lung cancer, surgical treatment should be adopted when there are indications for surgery. For people with lung nodules, moderate consumption of vinegar will not cause harm to the body, and moderate consumption of vinegar can provide the body with iron, manganese and other mineral elements, there is a certain nutritional value. For people with lung nodules, it is recommended to go to the hospital as soon as possible to clarify the cause of the disease and regular follow-up, and follow the doctor’s instructions to standardize the treatment to ensure that the disease has a good prognosis.