A recent review by Dr Meletis highlights the importance, especially during pregnancy, of iodine in our bodies. Pregnant moms, please make sure your prenatal has Iodine and if not I recommend you get an iodine supplement.
Inadequate iodine during pregnancy has been shown to cause hypothyroidism, lowered IQ, mental retardation brain damage. In addition, goiter, cretinism, cognitive and neurological disorders, gastric cancer, and breast disease have been associated with iodine deficiency. The recommended daily allowance for iodine in adults is 150 mg per day, 220 mg per day in pregnant women, and 290 mg daily in lactating women.
You can read the full review at the following link- http://www.drmeletis.com/wp-content/uploads/2012/07/Meletis-11.pdf