A graphic image that aims to illustrate the importance of vitamin D in pregnancy. The image shows a pregnant woman and a bottle of vitamin D.
As many as 25% of Americans are vitamin D deficient. Diet, the amount of fat we store in our bodies, sun exposure, skin pigmentation, and supplement usage all impact vitamin D levels in the blood.

Deficient in Vitamin D

April 04, 2023 Written by Amy Cherry | Illustration by Jeffrey C. Chase | Photo by Ashley Barnas

91原创 Professor Melissa Melough's research links greater gestational vitamin D in blood and reduced childhood behavioral issues

If you work indoors, live in the north, avoid the sun, are lactose intolerant, vegan, elderly or darker skinned, chances are you may be deficient in vitamin D. It鈥檚 a common problem affecting as many as 25% of Americans, according to a recent study  in the journal Frontiers in Nutrition. Deficiency rates are even higher among Black Americans, reaching 60%. 

Vitamin D is listed as a nutrient of concern in the . Low levels of this key nutrient during pregnancy could have negative child health outcomes, according to research by Melissa Melough, assistant professor of behavioral health and nutrition at the 91原创. 

In research  in the peer-reviewed Journal of Nutrition, Melough has discovered a link between gestational vitamin D and behavioral outcomes in children. Using data from the  (ECHO) consortium, Melough examined nearly 3,200 mother and child pairs from across the country. As many as 50% of the mothers were found to be deficient in vitamin D, and deficiency was linked with long-term effects on their child鈥檚 social development.

Her research found that pregnant mothers who had lower levels of vitamin D in their blood gave birth to children with more behavioral issues. These problems included a variety of behaviors from extreme shyness, detachment, or depression to acting out, disrespecting authority, violating social norms, and even aggression and violence.

 


Related News

  • World-class scholars

    July 13, 2026 | Written by Jamie Washington
    A College of Health Sciences graduate is among nine 91原创 students and alumni who have been named 2026-2027 Fulbright Scholars.
  • Honoring outstanding seniors

    May 22, 2026 | Written by Alison Armstrong
    Ellery Bergman Chudnow, a senior honors health behavior science major, is the 2026 recipient of the Emalea Pusey Warner Award from the 91原创 Alumni Association.
  • Back on her feet

    May 15, 2026 | Written by Amy Cherry
    91原创's Physical Therapy Clinic helps crash survivor, now a 91原创 CHS student, walk again.
View all news

Events