Can vitamins d and k change your gut bugs? new study seeks answers
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This study looks at how taking vitamin D3 and K2 supplements for 90 days affects blood levels and the community of bacteria in your gut (the microbiome). Researchers will compare these effects against a placebo in 96 healthcare workers who have low vitamin D. The goal is to under…
Phase: NA • Sponsor: Madigan Army Medical Center • Aim: Knowledge-focused
Last updated May 14, 2026 12:01 UTC