A little bit of ginger may relieve the nausea and vomiting that plague many pregnant women, researchers from the University of South Australia in Adelaide report - although it does not cure the problem.
Up to 80 percent of pregnant women experience morning sickness during the first trimester of pregnancy. Ginger has long been used to ease nausea, and there is some evidence that the botanical may relieve motion sickness and other types of queasiness.
But the research on ginger's ability to ease morning sickness is limited. To investigate, the researchers enrolled almost 300 women who were less than 16 weeks pregnant and suffered from nausea or vomiting.
Vitamin B6 has been shown to improve nausea and vomiting in some pregnant women, so the researchers compared the effects of ginger with the vitamin. The participants were randomly assigned to take a capsule containing 350-milligram (mg) of ginger or one containing 25 mg of vitamin B6 three times a day for three weeks.
Ginger was equally as effective as vitamin B6 at relieving nausea, vomiting and dry retching. Symptoms of morning sickness improved in a little more than half of the women in each group. Neither ginger nor vitamin B6 caused any major side effects. However, women who took ginger were much more likely to experience belching after taking the capsules.
There have been some concerns that taking ginger during pregnancy may be harmful to babies, but there were no differences between the ginger and vitamin B6 groups in birth defects or pregnancy complications. But because of the small size of the study, they conclude that there is "insufficient data" on the safety of ginger during the first trimester.
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