Vitamin D Plays Important Role To Avoid Miscarriage

Theme of study

Vitamin D is important to avoid miscarriage.


According to a study conducted by NIH, among women planning to conceive after a pregnancy loss, those who had sufficient levels of vitamin D were more likely to become pregnant and have a live birth, compared to women with insufficient levels of the vitamin.

Vitamin D may play a protective role in pregnancy.


Women who have higher levels of vitamin D before undergoing in vitro fertilisation have higher pregnancy rates than those with lower levels.

However, little research has been done on pregnancy rates and pregnancy loss in women attempting to conceive without assisted reproductive technologies.

How the experiment conducted

The researchers analysed data collected as part of the Effects of Aspirin in Gestation and Reproduction (EAGeR) trial, which sought to determine if daily low-dose aspirin (81 milligrams) could prevent miscarriage in women with a history of pregnancy loss.

Blood levels of vitamin D were tested for roughly 1,200 women before pregnancy and again at the eighth week of pregnancy. Researchers defined a vitamin D level of below 30 nanograms per milliliter as insufficient.

About the Study

Women who had sufficient preconception vitamin D concentrations were 10 percent more likely to become pregnant and 15 percent more likely to have a live birth, compared to those with insufficient concentrations of the vitamin.

Among women who became pregnant, every 10 nanograms per milliliter increase in preconception vitamin D was associated with a 12-percent lower risk of pregnancy loss. Vitamin D levels in the eighth week of pregnancy were not linked to pregnancy loss.

The authors noted that the study does not prove cause and effect. Additional studies are needed to determine whether providing vitamin D to women at risk for pregnancy loss could increase their chances of pregnancy and live birth. 

Result of study

Insufficient vitamin D is not only detrimental to bone health, but also important for maintaining pregnancy.

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