叶酸,是一种水溶性B族维生素。它是机体细胞生长、分裂所必需的物质。最近美国食品和药物管理局说,食品制造商必须给增补营养面包、面粉和其它谷物制品添加叶酸,以减少新生儿神经管缺陷的发生。研究表明,当妇女在妊娠前、妊娠初期食入足量叶酸,新生儿出现脊柱缺陷的较少。哈佛大学公共卫生学院心血管病预防中心埃德加·哈伯说,新的研究表明,叶酸能减少血流中的高半胱氨酸,从而降低心脏病的危险。这 Folic acid is a water-soluble B vitamins. It is the body cell growth and division of the necessary substances. The U.S. Food and Drug Administration said recently that food manufacturers must add folic acid to supplements for bread, flour and other cereal products to reduce the incidence of neural tube defects in newborns. Studies show that when women have enough folate in their first trimester before pregnancy and newborns have fewer spinal defects. Edgar Haber, a cardiovascular disease prevention center at the Harvard School of Public Health, said new research shows that folic acid reduces homocysteine ​​in the blood stream, reducing the risk of heart disease. This