Vitamin D supplementation in pregnancy.
BACKGROUND
Vitamin D deficiency can occur in people whose diet is relatively low in the vitamin and those who are not exposed to much sunlight.


OBJECTIVE
The objective of this review was to assess the effects of vitamin D supplementation on pregnancy outcome.


METHODS
We searched the Cochrane Pregnancy and Childbirth Group trials register and the Cochrane Controlled Trials Register (October 1998).


METHODS
Acceptably controlled trials of vitamin D supplementation during pregnancy.


METHODS
One reviewer assessed trial quality and extracted data.


RESULTS
Two trials involving 232 women were included. In one trial the mothers had higher mean daily weight gain and lower number of low birthweight infants. In the other trial the supplemented group had lower birthweights.


CONCLUSIONS
There is not enough evidence to evaluate the effects of vitamin D supplementation during pregnancy.
Mahomed
K
K
Department of Obstetrics and Gynaecology, University of Zimbabwe, PO Box A178, Avondale, Harare, Zimbabwe. kmahomed@healthnet.zw
Gulmezoglu
A M
AM
D019587:Dietary Supplements; D005260:Female; D006801:Humans; D011247:Pregnancy; D014807:Vitamin D
D014807:Vitamin D