Tuberculosis patients don't need to lose weight, but they need to strengthen nutrition and eat reasonably to help the recovery of the disease. Tuberculosis itself is a wasting disease, which is easy to be infected in people with poor nutritional status and low immune function. In addition, nausea, loss of appetite and other digestive tract symptoms will occur during the treatment of anti-tuberculosis drugs, which will induce or aggravate malnutrition in patients. Therefore, in addition to standardized drug treatment under the guidance of doctors, patients with pulmonary tuberculosis should also quit smoking and drinking, avoid eating cold, spicy and irritating foods, reasonably increase nutrition, and diversify and reasonably match foods. Patients can usually drink more water, mainly cereals, eat more fresh vegetables and fruits, and pay special attention to increasing the intake of foods rich in calcium, vitamin A and high protein, such as lean meat, milk and bean products. And the food practice is mainly light. In life, we should also pay attention to maintaining indoor air circulation, regular work and rest, appropriate activities to enhance physical fitness and promote the early recovery of tuberculosis patients.