Receive updates about our latest products in your inbox

Register For Our Next Webinar

Supporting the Immune System Through the Gut-Immune Axis

About Us

For over 40 years, Biotics Research Corporation has revolutionized the nutritional supplement industry by utilizing “The Best of Science and Nature”. Combining nature’s principles with scientific ingenuity, our products magnify the nutritional

Search the Blog

    Pregnancy Vitamin D Levels Linked to Child IQ

    iStock-1160932512Recent research has shown that a mother’s vitamin D levels during pregnancy are positively associated with their offspring’s IQ scores.

    We know that vitamin D is critical for neuronal and other embryonic developmental processes that may affect future neurocognitive function. Previous observational studies have found connections between gestational vitamin D levels and neurocognitive outcomes, such as the development of brain disorders like schizophrenia and autism. Some cohort studies have also found a link between vitamin D in pregnancy and IQ during childhood. Other recent studies, however, have not supported this connection.

    This new study used data on the 25-hydroxyvitamin D [25(OH)D] levels of 1503 women in their second trimester of pregnancy and neurocognitive development in their children between 4 and 6 years of age. The researchers examined the connections between the second-trimester 25(OH)D and Stanford-Binet IQ scores using a multivariable linear regression. 

    The results showed that around 46% of the mothers were deficient in vitamin D during their pregnancy (normal vitamin D level is around 20 ng/mL), and levels varied depending on variations in skin color. Due to vitamin D absorption, darker-skinned women had levels with a standard deviation of between 19.8 and 7.2 nanograms per milliliter (ng/mL), and lighter-skinned women had a standard deviation of between 25.9 and 9.3 ng/mL. In adjusted models, a 10 ng/mL increase in vitamin D saw a 1.17-point higher Full Scale IQ and Verbal IQ, and a 1.03-point higher Nonverbal IQ, with no observed effect modification by skin color.

    The scientists leading the study conclude that gestational vitamin D status may be an important predictor of neurocognitive development. These findings could help inform prenatal nutritional recommendations, as screening and supplementation may help with vitamin D deficiency.

    Related Biotics Research Products:

    Emulsified Vitamin D

    Submit your comment

    Related Post

    Study Shows Vitamin D Absorption is Optimized with Magnesium

    In a study published in The American Journal of Clinical Nutrition, lead author Qi Dai, MD, PhD, Ingram, Professor of Ca...

    Learn more

    Vitamin D Levels and the Skin-Gut Connection

    The results of a clinical trial conducted by researchers from the University of Columbia in Canada were published in the...

    Learn more

    A Case Report Uncovers a Potential Connection Between Low Vitamin D and Fatigue

    A case report from the University of Florida College of Medicine’s Department of Medicine has unveiled an unusual potent...

    Learn more