For pregnant women with high blood sugar, the first thing to do is to pay attention to the diet, in order to ensure the nutrition of the mother and child, but also for the stabilization of blood sugar, must choose the lower glycemic index of the food to eat. In order to ensure the nutrition of the mother and child, to eat a balanced diet, food diversity in order to ensure the health of the mother and child. And pregnant women with high blood sugar, do not eat chestnuts, when the blood sugar control, stabilized the situation, such as fasting blood sugar less than 5.3 mmol / L, 1 hour after meals, blood sugar less than 7.mmol / L, 2 hours after meals, blood sugar less than 6.7 mmol /, this is the requirement of the pregnant women’s blood glucose control targets. When the blood sugar control target is reached, you can eat no more than 30g of chestnuts per day in the middle of two meals or one hour before meals. Because chestnut is a higher glycemic index of dry fruits, but it also contains vitamin B1, vitamin B2, vitamin C. The content is high, which is needed for both pregnant women and fetuses. For pregnant women, it is better to eat more vitamins, and chestnuts contain soft dietary fiber, which helps prevent the rise of blood sugar after meals. In short, for pregnant women, when the blood sugar control is stable, you can take a moderate amount of it, but do not exceed 30g per day. and as an additional meal to eat, it is safer to eat it 1 hour before the meal or 2 hours after the meal, when the blood sugar is lower.