Abstract
Iodine deficiency occurs during pregnancy even in areas with mild iodine deficiency. The data from northeast England show that 3.5% have iodine deficiency and a higher percentage (40%) have mild deficiency. This shows that iodine deficiency is not under control in England. Women in childbearing ages should have an average daily iodine intake of greater than 150 μg. During pregnancy the nutrient intake for iodine should be increased to 200 μg. A study was conducted to determine urinary iodide excretion (UIE) by measuring urinary iodide concentrations in pregnant and age-matched controls in the northeast of England. The data showed that at least 3.5% of pregnant women had iodine deficiency and 40% had borderline iodine deficiency. The data suggest that either iodine deficiency is re-emerging or it has never been under control in England. Large-scale studies are necessary to ensure that women of childbearing age improve their dietary intakes and reviews of the recommended intakes for pregnant women are conducted. A starting point may be to examine iodine intake in school leavers and screening during pregnancy.
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