Generally diabetic patients with stable blood glucose are suitable to eat 100% pure dark chocolate sparingly, and if their condition is unstable, 100% pure dark chocolate is not recommended. Diabetes refers to high blood glucose level, to determine whether diabetes is suitable to eat 100% pure dark chocolate, need to be based on the actual condition, can not be generalized. Dark chocolate does not mean unsweetened chocolate. Generally, dark chocolate refers to chocolate with a cocoa solids content between 70% and 99% or a milky content of less than 12%. Dark chocolate with 100% cocoa solids is pure dark chocolate, with a consequent decrease in sugar content. Therefore, diabetics with stable glycemic control can consume a small amount of 100% pure dark chocolate. If diabetic patients have poor glycemic control and unstable condition, it is not recommended to eat 100% pure dark chocolate, otherwise it will aggravate the condition to some extent. Diabetic patients need to strengthen dietary management, low sugar, low salt, low fat, high dietary fiber-based, and usually need to actively exercise, which helps to control blood sugar. Diabetic patients need to actively cooperate with the doctor’s treatment, strengthen daily life management and regular follow-up.