Good gut diversity if Ultraviolet Light or if supplement with Vitamin D

Exposure to Sunlight Boosts Good Gut Microbiome Bacteria, and Vitamin D Levels

• “The results of the study confirmed that skin UVB exposure significantly increased gut microbial diversity, but only in the 12 subjects who were not taking vitamin D supplementation.”

• “UVB exposure boosted the richness and evenness of their microbiome to levels indistinguishable from the supplemented group, whose microbiome was not significantly changed.”

The Study: Skin Exposure to Narrow Band Ultraviolet (UVB) Light Modulates the Human Intestinal Microbiome

📄 Download the PDF from VitaminDWiki

Change in Vitamin D levels when UVB was added

Note: Some who had high level of Vitamin D before had no change or even reduced levels after UVB

More of a species if higher Vitamin D (UVB or supplement)

See also VitaminDWiki

• Gut microbiome massively changed by weekly vitamin D – July 2015

• Massive improvement in vaginal microbiome during pregnancy with Vitamin D – March 2019

• Prediabetic have very different gut bacteria – March 2015

• Exploring gut microbes in Human health and disease: pushing the envelope - Aug 2014

• Vitamin D, immunity and microbiome – Dec 2014

• Probiotic and vitamin D synergy - July 2015

• Resveratrol, Metabolic Syndrome, and Gut Microbiota – Nov 2018

  • Note: Resveratrol increases Vitamin D to the cells for people with poor Vitamin D Receptor genes

• Gut bacteria of Crohn's disease patients improved by Vitamin D – March 2018