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.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | St. Louis VA Medical Center NIH-funded |
| Lab location | 1 site (St. Louis, UNITED STATES) |
| Project start | July 1, 2018 |
| Project end | January 31, 2027 |
| Funding year | 2026 |
| NIH project number | 5I01BX003648-08 |
| Project ID | NIH-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
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.