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Study identifier: NCT06519877 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Fiber and Calcium Absorption in Older Men

Condition: Aging  ·  Sponsor: VA Office of Research and Development

PhasePhase 2
Planned participants30
Who can joinMale, 60 Years to no upper limit
Healthy volunteersYes

About this study

Osteoporotic fractures are a major but underrecognized problem in men. There is growing evidence that low dietary fiber intake is a modifiable risk factor for age-related bone loss in men. Preclinical and human studies in adolescents and postmenopausal women suggest that dietary fiber intake influences bone metabolism by modulating the gut microbiome to augment intestinal calcium absorption, but it is unclear through what molecular mechanism and whether dietary fiber has the same effects in older men. In this crossover intervention study, the investigators will enroll and follow 30 older male Veterans to evaluate the effects of soluble corn fiber on intestinal calcium absorption and explore the contribution of the gut microbiome.

This description comes directly from the study's public registry record.

Talk to the study team

Karin C Wu, MD  ·  (415) 221-4810  ·  karin.Wu@va.gov

Always discuss trial participation with your own doctor first.

Locations (1)

San Francisco VA Medical Center, San Francisco, CASan Francisco, California, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06519877