Lung nodules can eat sea buckthorn, which can replenish nutrients for the organism; patients should eat more foods rich in protein and vitamins, and reduce stimulating greasy foods. Sea buckthorn contains a variety of trace elements, including protein, crude fiber, carotene, vitamin B, vitamin C, niacin and a variety of minerals. Lung nodules are focal round or round-like dense shadows of various sizes, with clear or fuzzy edges and diameters less than or equal to 3cm on imaging, with unknown etiology and no special contraindications on diet. Consumption of sea buckthorn can supplement a variety of nutrients for the body, which is beneficial to the patient’s health. Lung nodules should maintain a light diet, eat more eggs, soybeans, chicken and other high-protein foods, eat more vegetables and fruits and other high-vitamin foods; avoid spicy and stimulating food, greasy food, and quit smoking and drinking. Lung nodule patients should eat reasonably and actively seek medical treatment.