High blood sugar can eat white dragon fruit, because the white dragon fruit is a low glycemic index of the fruit, the effect of raising blood sugar is not so fast, relative to other fruits, belong to the low glycemic index, but also can not eat a dragon fruit or a lot of dragon at once. Generally speaking, diabetic patients can eat half a white dragon fruit at a time. Also pay attention to which fruits can and cannot be eaten by patients with high blood sugar, so try to choose fruits with low glycemic index, such as tomatoes, cucumbers, pears, peaches or crystal pears, guavas, which all belong to low glycemic index, and green apples, which also belong to low glycemic index fruits, and generally speaking, control the amount of intake to one. Some fruits with high glycemic index are not recommended for diabetic patients, such as longan, lychee, grapes, red dates, red apples and bananas, which raise blood sugar especially fast. Some fruits that are not specifically pointed to, generally belong to the medium glycemic index, can be appropriate to eat a little, but the amount should not be too large.