一般情况下，正常女性每天至少需要400微克的叶酸，可以通过饮食或服用叶酸片来满足。
Under normal circumstances, the normal women need at least 400 micrograms of folic acid, folic acid through diet or tablets to meet.
当你准备要一个孩子的时候，你要开始做产前检查，每天服用至少含有400微克叶酸的多维他命剂。
Start taking a prenatal or multivitamin containing at least 400 MCG of folic acid per day as soon as you know you're ready for babies.
尤其在骨髓初期开始成长的时候，当然那时孕妇可能还不知道自己怀孕了，最安全的办法就是让她每天服用400微克的维生素b(叶酸的合成体)。
Since the spinal cord starts to develop extremely early-before a woman may know she's pregnant-the safest course is for her to take 400 micrograms of folic acid (the synthetic form of folate) daily.
她说，其他研究已经表明，美国育龄妇女平均每日叶酸摄入量约为130微克，远低于推荐的400微克。
She said other research has shown that U. S. women of childbearing age average about 130 micrograms of folic acid daily, far below the recommended level.
研究表明，每天摄取叶酸达675微克，就可以削减13%心血管疾病的风险。
Taking in that much folic acid daily cuts your risk of cardiovascular disease by 13 percent, according to researchers.
研究表明，每天摄取叶酸达675微克，就可以削减13%心血管疾病的风险。
Taking in that much folic acid daily cuts your risk of cardiovascular disease by 13 percent, according to researchers.
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