Vitamin D supplements 'safe during pregnancy'

29th June 2011

It is safe for healthy pregnant women to take vitamin D supplements, it has been claimed.

A team from the Medical University of South Carolina in Charleston, US, found that even women who took high levels of vitamin D had no adverse effects and neither did their newborns.

Over the course of the study, which is detailed in the Journal of Bone and Mineral Research, over 350 women were monitored over the course of their pregnancy. One group was given 400 international units (IU) of vitamin D per day, the second group received 2,000 IU per day and the third received 4,000 IU.

It was found that the women on the highest dosage were more likely to achieve the desired level of circulating levels of vitamin D.

Commenting, Dr Bruce Hollis, who led the study, said: "Following decades of speculation into its safety our research has demonstrated vitamin D supplementation to be both safe and effective."

Vitamin D is found naturally in sunlight and some foods such as oily fish, eggs and powdered milk.

Posted by Philip Briggs

1. B. Hollis, D. Johnson , T. Hulsey, M. Ebeling, L. Wagner.Vitamin D Supplementation during Pregnancy: Double Blind, Randomized Clinical Trial of Safety and Effectiveness. Journal of Bone and Mineral Research, 2011

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