Prostate cancer patients can usually eat mangosteen. Mangosteen is a relatively common tropical fruit, the pulp is rich in dietary fiber, and contains protein, sugar, lipids, and magnesium, calcium, phosphorus, potassium and other minerals and a variety of vitamins, which can supplement the body’s daily nutritional needs. Malignant tumors are a consumptive disease, and patients are prone to symptoms such as loss of appetite, indigestion, nausea, vomiting, nausea (poor appetite), and are susceptible to nutritional imbalance or malnutrition, and affect survival time. Aggressive nutritional treatment is often required to ensure a good physique in order to tolerate surgery, endocrine treatment, chemotherapy, etc. Moderate intake of mangosteen can supplement all types of nutrients and dietary fiber. However, consuming too much cilantro can partially cause digestive discomfort and aggravate gastrointestinal symptoms, so it should be consumed in moderation. In addition to paying attention to the nutritional diet, we should also avoid smoking and drinking alcohol in our daily life, and develop good living habits and appropriate exercise, which will help patients receive better treatment. Diet is not a direct treatment program, but only an auxiliary means; it is recommended to go to a regular hospital, follow the doctor’s instructions to cooperate with the treatment, so as not to delay the condition.