Systematic prescription of vitamin B9 is recommended from the moment a woman plans to become pregnant through the first two months of pregnancy. This vitamin, also known as "folic acid" or "folates," reduces the risk of poor fetal growth and certain birth defects in the unborn baby. This brochure informs women about the role and importance of this vitamin, which should be prescribed by a healthcare professional as soon as pregnancy is planned. It also reminds readers that a varied and balanced diet, as well as certain specific foods, provide ample amounts of vitamin B9.