NIH-funded research NIH-funded research

Vitamin D and early-life risk of obesity and insulin resistance

Official title: Vitamin D and Development Origins of Obesity and Insulin Resistance

Funded at St. Louis VA Medical Center · NIH-11264921 · Data updated 2026-11-12

This project tests whether giving vitamin D during pregnancy helps prevent children from becoming obese or insulin-resistant.

More Obesity research and trials

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionSt. Louis VA Medical Center
NIH-funded
Lab location1 site (St. Louis, UNITED STATES)
Project startJuly 1, 2018
Project endJanuary 31, 2027
Funding year2026
NIH project number5I01BX003648-08
Project IDNIH-11264921 on NIH RePORTER

Who could benefit from this research

Could help

Ideal participants would be people who are pregnant early in pregnancy—especially those with low vitamin D—or parents of young children born to veterans served by the VA.

Less likely to help

Adults who already have established obesity or long-standing diabetes are unlikely to benefit from a prenatal-focused intervention.

What this research studies

We're studying whether low vitamin D during pregnancy can reprogram fetal immune and fat-cell development in ways that raise a child's risk of obesity and insulin resistance. The team combines analysis of samples from veterans and their offspring with laboratory mouse experiments to trace how prenatal vitamin D status changes genes, immune stem cells, and microRNA signals in fat tissue. They will test whether giving vitamin D before birth prevents those molecular changes and the later development of excess weight and metabolic problems. This mix of human sample work and animal models aims to show the biological steps that could be targeted to protect children.

Why it matters

Potential benefit: If successful, prenatal vitamin D supplementation could reduce children's long-term risk of obesity, insulin resistance, and related cardiovascular problems.

How similar studies have gone: Animal studies show prenatal vitamin D deficiency can increase offspring obesity and metabolic risk, but direct human trials showing prenatal vitamin D prevents childhood obesity are limited and unclear.

Where this research is happening

  • St. Louis VA Medical Center
    St. Louis, United States
    Active

Researchers

  • Principal investigator: Bernal-Mizrachi, Carlos — St. Louis VA Medical Center
  • Study coordinator: Bernal-Mizrachi, Carlos

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.