Patients with high blood sugar are generally not recommended to drink green tea beverages, if you want to drink green tea can be purchased or homemade low-sugar, sugar-free green tea. In order to ensure the taste of green tea drinks sold on the market, usually add a large number of sugar additives, and patients with high blood sugar may cause large fluctuations in blood glucose after drinking drinks with high sugar content, which is not conducive to blood glucose control, so patients with high blood glucose are generally not recommended to drink green tea drinks. If you want to drink tea, you can buy or make your own low-sugar, sugar-free green tea, which generally does not cause excessive increase in blood sugar, and green tea also contains tea polyphenols, caffeine and other substances, which are beneficial to health. Patients diagnosed with high blood sugar should be treated with standardized medication under the guidance of a doctor.