PRENATAL DAIRY, SEAFOOD INTAKE MAY INCREASE CHILD'S IQ
Published May 23, 2013 in Food Product Design.jpg)
LONDON—Pregnant women who consume iodine-rich foods, such as milk, dairy products and seafood, may help boost their children's IQs, according to a new study published in The Lancet. The findings suggest iodine deficiency during gestation can pose a risk to the developing infant.
Researchers assessed whether mild iodine deficiency during early pregnancy was associated with an adverse effect on child cognitive development by analyzing mother-child pairs from the Avon Longitudinal Study of Parents and Children (ALSPAC). They measured urinary iodine concentration in a sample of 1,040 first-trimester pregnant women, then researchers measured IQ levels of the offspring at age 8 years.
Mothers with iodine-to-creatinine ratios of less than 150 μg/g were more likely to have children with scores in the lowest quartile for verbal IQ, reading accuracy, and reading comprehension compared to mothers with ratios of 150 μg/g or more. When the less than 150 μg/g group was subdivided, scores continued to worsen from 150 μg/g or more, to 50-150 μg/g to less than 50 μg/g.
The researchers' interpretation of these results show the importance of adequate iodine status during early gestation, emphasizing the risk iodine deficiency can pose to the developing infant, even in a country classified as only mildly iodine deficient.
"Pregnant women and those planning a pregnancy should ensure adequate iodine intake," said Sarah Bath, a co-author and registered dietitian."Good dietary sources are milk, dairy products and fish."
Researchers assessed whether mild iodine deficiency during early pregnancy was associated with an adverse effect on child cognitive development by analyzing mother-child pairs from the Avon Longitudinal Study of Parents and Children (ALSPAC). They measured urinary iodine concentration in a sample of 1,040 first-trimester pregnant women, then researchers measured IQ levels of the offspring at age 8 years.
Mothers with iodine-to-creatinine ratios of less than 150 μg/g were more likely to have children with scores in the lowest quartile for verbal IQ, reading accuracy, and reading comprehension compared to mothers with ratios of 150 μg/g or more. When the less than 150 μg/g group was subdivided, scores continued to worsen from 150 μg/g or more, to 50-150 μg/g to less than 50 μg/g.
The researchers' interpretation of these results show the importance of adequate iodine status during early gestation, emphasizing the risk iodine deficiency can pose to the developing infant, even in a country classified as only mildly iodine deficient.
"Pregnant women and those planning a pregnancy should ensure adequate iodine intake," said Sarah Bath, a co-author and registered dietitian."Good dietary sources are milk, dairy products and fish."
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