Randomized control trial of moderate dose vitamin D alters microbiota stability and metabolite networks in healthy adults.

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this randomized controlled trial publication.

Evidence indicates that both vitamin D and the gut microbiome are involved in the process of colon carcinogenesis.

However, it is unclear what effects supplemental vitamin D3 has on the gut microbiome and its metabolites in healthy adults.

Who Took Part

The abstract describes 12 adults taking part.

By PubMed's age tags, the people studied were young adults, adults and middle-aged adults, both men and women.

How the Study Was Run

In design terms this was a randomized, double-blind and placebo-controlled study.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

Neither the adults nor the staff measuring them knew who was on Vitamin D, K2, Magnesium and Zinc, so expectations could not easily colour the readings.

A placebo (an inactive look-alike) gave the Vitamin D, K2, Magnesium and Zinc group a baseline to be compared against.

What Was Measured

Both vitamin D, dietary and serum levels, and the gut microbiome are implicated in the etiology of colorectal cancer.

The subject headings attached to it are Gastrointestinal Microbiome, Vitamin D, Dietary Supplements, Healthy Volunteers, Cholecalciferol, Bacteria and Feces.

The authors tagged it with the keywords colon cancer, early-onset colorectal cancer, gut microbiome, inflammation and microbiome stability.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc in 12 adults.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

The publication is from 2024 (Microbiology spectrum), a journal based in United States.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.