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Iodine deficiency is the leading preventable cause of intellectual impairment in the world.
Although iodine supplementation is generally considered to be safe, there is a possibility of high doses of iodine suppressing maternal thyroid function. The objective of this review was to assess the effects of iodine supplementation before or during pregnancy in areas of iodine deficiency. We searched the Cochrane Pregnancy and Childbirth Group trials register. This is an abstract of a regularly updated, systematic review prepared and maintained by the Cochrane Collaboration. Update Software Ltd. All rights reserved.