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05 Jan 2015

The researchers looked at three types of B vitamins - B-6, B-12 and folic acid - and determined that the risk to a pregnancy was higher with B-12 and folic acid deficiencies and with deficiencies in more than one type of B vitamins. The researchers also found that women with high DDT and low B vitamin levels took nearly twice as long to conceive in the first place. The standard of care in many nations is to give an iron-folate supplement to women once they seek prenatal health care, which typically occurs between eight and 12 weeks of gestation, if at all. But that supplement is rarely taken prior to conception, meaning it likely comes too late to prevent early pregnancy loss. And unlike in the United States, where many foods are fortified with folic acid, that is not the norm around the world. Difficulty conceiving is prevalent in both developed and developing countries. In the United States, the percentage of married women between the ages of 15 and 44 who had difficulty achieving and maintaining pregnancy increased from 8 percent in 1982 to 11.8 percent in 2002, an increase that cannot be completely explained by the age of the women. Better nutrition - including fortifying foods with B vitamins - in countries where DDT is still in wide use could improve pregnancy outcomes, Wang says.
For the original version including any supplementary images or video, visit http://www.eurekalert.org/pub_releases/2015-01/jhub-vbm010515.php



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