A rare few have lived for several months. With increased amniotic fluid there is an increased chance of placental abruption if the water breaks and comes out too fast. Generally, though, because there is no top part of the head pressing down, the water does not break on its own. There is also an increased chance of uterine rupture especially if there is a previous uterine scar. Amniocentesis has been performed to remove some of the excess fluid in some cases, but generally the polyhydraminos is just monitored through invasive procedures such as ultrasound and fundal measurements.
Folic acid is a necessary element needed for correct neural tube development.
It is part of the B-Complex Vitamins and is also called folate or folacin. It is present in many leafy, green vegetables, orange juice, dried beans, and peas. It is difficult to get enough folic acid by diet alone. In fact, in order to get 4 mgs of folic acid daily, you would need to drink 80 glasses of orange juice or have 100 servings of broccoli. In the United States, we now fortify many of our grain products, such as bread to help prevent neural tube defects.