Patients with high blood sugar can eat mangosteen, but its sugar content is not low, so be careful to eat in moderation. Mangosteen does not have the therapeutic effect of lowering sugar. Mangosteen is rich in vitamins, minerals and other nutrients, can play a role in clearing away heat and promoting the production of fluids, so patients with high blood sugar can eat mangosteen appropriately; however, there is a lot of sugar in mangosteen, and patients with high blood sugar are not recommended to eat a lot of mangosteen at one time, which can cause large fluctuations in blood sugar, which is not conducive to blood glucose control, and may also cause gastrointestinal discomfort. In daily life, patients with high blood sugar should maintain a low-salt, low-sugar and low-fat diet, and avoid eating foods such as chocolate, milk tea, cream cakes and fatty meats. Patients diagnosed with high blood sugar should be treated with standardized medication under the guidance of doctors.