Using dietary fiber to enhance calcium absorption and bone health in older men

Modulation of the gut microbiome by dietary fiber to improve calcium absorption and bone health in older men

NIH-funded research Veterans Affairs Med Ctr San Francisco · NIH-10925538

This study is looking at how eating more dietary fiber might help older men, especially Veterans, absorb calcium better and improve their bone health by changing the bacteria in their gut.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionVeterans Affairs Med Ctr San Francisco NIH-funded
Lab location1 site (San Francisco, United States)
Project IDNIH-10925538 on NIH RePORTER

What this research studies

This research investigates how dietary fiber can improve calcium absorption and bone health in older men, particularly focusing on male Veterans. The study aims to understand the role of the gut microbiome in this process, as dietary fiber may increase the production of short chain fatty acids that help regulate calcium metabolism. By conducting a crossover intervention study, researchers will evaluate the effects of soluble corn fiber on both calcium absorption and the composition of the gut microbiome. This approach seeks to uncover the mechanisms behind dietary fiber's potential benefits for bone health.

Who could benefit from this research

Good fit: Ideal candidates for this research are older men, particularly Veterans, who may be experiencing age-related bone loss.

Not a fit: Patients who are not older men or those without concerns related to bone health may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to dietary recommendations that improve bone health and reduce fracture risk in older men.

How similar studies have performed: Previous studies have shown promising results regarding dietary fiber's impact on calcium absorption in other populations, suggesting potential success in this novel application.

Where this research is happening

San Francisco, United States

Researchers

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 below.
Last reviewed 2026-06-10 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.