Ultraviolet Light Exposure Leads to Changes in Gut Microbiome

A new study, led by the researchers from the University of British Columbia, Canada, shows that ultraviolet light (UV light) leads to changes in the gut microbiome but only in people who have vitamin D deficiency.Ultraviolet Light Exposure Leads to Changes in Gut Microbiome

For the study, a team of researchers recruited nine female volunteers, deficient in vitamin D, who took vitamin D supplements for three months before experiments and twelve who didn’t take supplementation.

All the participants received three sessions of UVB exposure. Those volunteers who were deficient in vitamin D showed changes in their gut microbiome and the same hallmarks as the volunteers who were not vitamin D deficient.

Senior study author Prof. Bruce Vallance says: “The results of this study have implications for people who are undergoing UVB phototherapy and identifies a novel skin-gut axis that may contribute to the protective role of UVB light exposure in inflammatory diseases like MS and IBD.”

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