Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
NCT07199829
This study is recruiting at 1 US site in 1 state, according to its ClinicalTrials.gov record last updated .
Summary
The main purpose of this research study is to learn about the effects of supplemental vitamin D3 and vitamin K2 on blood levels and the gut microbial community, called the gut microbiome. There are many influences on blood levels of vitamin D and K to include your dietary intake, lifestyle behaviors (physical activity, sleep), genetic alterations in metabolism of these vitamins, and the gut microbial abundance and diversity.
Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov
Conditions studied
- Hypovitaminosis D
- Hypovitaminosis
Eligibility basics and study details
- Study type
- Interventional
- Phase
- Not applicable
- Ages
- 18 to 69 years
- Sex
- All
- Healthy volunteers
- Accepted
- Sponsor
- Madigan Army Medical Center
- Last updated on ClinicalTrials.gov
- September 30, 2025
These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.
US recruiting sites
Washington · 1
- Madigan Army Medical Center · Tacoma, WA
Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.