Today The Lancet published a paper looking at the relationship between iodine deficiency during pregnancy and children’s mental development.

The study included 1000 mothers and their children and found that iodine deficiency in pregnancy may have an adverse effect on children’s mental development.

The researchers measured the iodine concentration in urine samples taken in the first trimester from 1040 pregnant women. They found that children of women in the iodine-deficient group were significantly more likely to have low scores of verbal IQ, reading accuracy, and reading comprehension.

via Health News – RCOG statement on Lancet paper on iodine deficiency during pregnancy.