Eating sweet potato fetus in late pregnancy may be able to grow, but also pay attention to the nutritional balance is conducive to the growth of the fetus. Sweet potatoes are rich in carotene, vitamins and carbohydrates, iron, potassium, magnesium, copper, calcium and other nutrients. Pregnant women who eat sweet potatoes can replenish the nutrients needed by the body, which is conducive to the development of the fetus. Sweet potatoes contain more carbohydrates, a small amount of sweet potatoes in late pregnancy will not significantly long fetus, but if a large number of sweet potatoes or total dietary intake is excessive, resulting in excessive intake of total calories, it will make the fetus weight growth too fast, and even the formation of a huge fetus, which is not conducive to a smooth delivery. In late pregnancy, pregnant women are advised to pay attention to balanced nutrition, not to eat single foods, eat more fresh vegetables and fruits, as well as lean meat, milk, soy products and fish and shrimp and other high-protein foods, and take regular pregnancy tests to understand the development of the fetus.