How much folic acid should be taking?

Folic acid is a substance found in many foods and has been shown that in certain regions of the world in which there is a deficiency of folic acid in the diet, such as parts of England there is an increased risk of malformations in nervous system – such as spina bifida or myelomeningocele, and has also been seen that administration of folic acid in the diet prevents this type of malformations.
That is why the administration should be the same in women who are looking for a pregnancy, and folic acid should be taken before pregnancy to occur and continue eating until around the third month of pregnancy. The recommended dose of folic acid to prevent problems with neural tube closure are about 1mg per day, unless the woman has a baby with a problem of this kind, in which case the recommended dose is higher, around 5 mg per day.