Pregnant women who eat sweet potatoes in reasonable amounts will not cause excessive fetal weight gain. During pregnancy, if the total calorie intake is excessive for a long time due to excessive dietary intake, the fetus may gain too much weight and cause a huge fetus. But it is not because of the simple consumption of sweet potatoes will cause this situation. Because the carbohydrate content of sweet potatoes is relatively high, can provide more calories. During pregnancy, if you consume a sufficient amount of rice, noodles and other staple foods, and then sweet potatoes as a snack or vegetables to eat will make the pregnant woman’s body calorie intake is too much, over time may cause excessive fetal weight gain. However, if sweet potatoes are eaten as a staple food instead of some rice, noodles and other staple foods, not only will not cause a huge fetus due to excessive calories, but will reduce the total calorie intake in the diet, helping to control the weight of pregnant women.