Generally, if the potato skin turns green, it is not only nutritious, but also harmful to human digestive organs, or seriously carcinogenic in the later stage. Try to eat some fresh potatoes at ordinary times. First of all, it contains nutrients such as starch, vitamins and fat. The energy supply to the body is comprehensive, especially green potatoes can not be given to pregnant women. If it is serious, it will have serious consequences for the fetus, such as abortion or fetal malformation. Pay attention to a healthy and reasonable diet at ordinary times.