Sunlight Exposure Is Reflected in Your Poop

the Sun can indeed shine out of your backside, suggests research. Not because you’re self-absorbed, but because you’ve absorbed gut-altering UV radiation. This is the first study to show that skin exposure to UVB light alters the gut microbiome in humans. Published in Frontiers in Microbiology, the analysis suggests that vitamin D mediates the change – which could help explain the protective effect of UVB light in inflammatory diseases like MS and IBD. Ratifying rodent studies Sun exposure, vitamin D levels and the mix of bacteria in our gut are each associated with risk of inflammatory conditions like MS and IBD. Scientists hypothesize that a causal chain links the three. Exposure to UVB in sunlight is well-known to drive vitamin D production in the skin, and recent studies suggest that vitamin D alters the human gut microbiome. However, that UVB therefore causes gut microbiome changes, via vitamin D production, has so far been shown only in rodents. https://www.technologynetworks.com/tn/news/sunlight-exposure-is-reflected-in-your-poop-326420?utm_campaign=NEWSLETTER_TN_Breaking%20Science%20News&utm_source=hs_email&utm_medium=email&utm_content=78538930&_hsenc=p2ANqtz-9xKZWZkOcvC61rINGuGspIVR4Q_pCP-hyBf_KZezZx66RDOOA-_a14ZOZyj3YgBeLaAXPyNwbAUfdpQdTAm8tBW8Q2vQ&_hsmi=78538930