Low immunity may be related to the patient’s physique or disease, diet does not have a therapeutic effect, so it is recommended that patients seek medical advice in a timely manner to clarify the causes of immunity under targeted treatment. While actively treating the primary disease, patients can consume the following diets under the guidance of doctors, enhance the body’s nutrition, strengthen exercise, as well as take certain drugs as prescribed by doctors: 1. 2, fruits: fruits are rich in vitamins, minerals, fiber and other nutrients, such as bananas, strawberries, blueberries, apples, rooibos, papaya, dragon fruit, kiwi, etc., which help to strengthen the body; 3, meat, eggs and milk: including beef, chicken, duck, fish, ribs, shrimp, eggs, milk, etc., which can provide protein for the body and provide energy for the body; 4, vegetarian dishes : such as eggplant, carrots, broccoli, spinach, shiitake mushrooms, tomatoes, asparagus, soybeans, enoki mushrooms, etc., which are rich in vitamins, fiber, protein, trace elements and other nutrients that help promote metabolism, reduce intestinal pressure and promote growth and development. Second, medication patients can take protein powder, vitamin C tablets, multivitamin tablets, probiotics, etc. under the guidance of a doctor, or follow medical advice with Chinese herbs such as Andrographis paniculata, bitter ginseng, hawthorn, codonopsis and other decoction or cooking herbal meals. In addition, it is recommended that patients can enhance their physical fitness through exercise, such as walking, jogging, swimming and other exercise programs, adhere to and not strain, shortness of breath.