{"id":405894,"date":"2026-03-27T01:27:11","date_gmt":"2026-03-27T01:27:11","guid":{"rendered":"https:\/\/www.europesays.com\/ie\/405894\/"},"modified":"2026-03-27T01:27:11","modified_gmt":"2026-03-27T01:27:11","slug":"vitamin-d-shows-promise-in-resetting-immune-system-in-inflammatory-bowel-disease","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ie\/405894\/","title":{"rendered":"Vitamin D Shows Promise in Resetting Immune System in Inflammatory Bowel Disease"},"content":{"rendered":"

New research suggests that vitamin D supplements can reshape how the immune system responds to gut bacteria in patients with inflammatory bowel disease, potentially nudging the body toward a more protective, less inflammatory state. The findings offer early clues toward therapies that restore immune tolerance rather than simply suppress symptoms.<\/strong><\/p>\n

\"Gubatan<\/a><\/p>\n

Gubatan et al. demonstrate that vitamin D promotes immune tolerance to gut microbiota in patients with inflammatory bowel disease. Image credit: Gubatan et al., doi: 10.1016\/j.xcrm.2026.102703.<\/p>\n

Inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn disease, is a chronic inflammatory disorder of the gastrointestinal tract that is thought to arise from a complex interplay between host genetic predisposition1 and environmental triggers.<\/p>\n

Loss of immune tolerance to commensal gut bacteria has been recognized to play a pivotal role in the pathogenesis of IBD.<\/p>\n

Current therapeutic strategies in IBD have focused mainly on targeting dysregulated immune responses without directly addressing gut microbiome crosstalk with intestinal immunity.<\/p>\n

Understanding the mechanisms that regulate host immune-microbe interactions and developing ways to restore immune tolerance to gut microbiota could lead to therapeutic strategies to treat or prevent IBD.<\/p>\n

\u201cThis study suggests vitamin D may help rebalance how the immune system sees gut bacteria,\u201d said Dr. John Mark Gubatan, a gastroenterologist at Mayo Clinic.<\/p>\n

\u201cThat\u2019s an important step toward understanding how we might restore immune tolerance in IBD.\u201d<\/p>\n

In the new study, the researchers evaluated 48 people with IBD who had low vitamin D levels.<\/p>\n

Participants received weekly vitamin D supplements for 12 weeks. Blood and stool samples collected before and after treatment were analyzed using advanced sequencing to map interactions between immune responses and the gut microbiome.<\/p>\n

Vitamin D supplementation was associated with increased levels of immunoglobulin A (IgA), which is typically linked to protective immune responses, and decreased levels of immunoglobulin G (IgG), more often associated with inflammation.<\/p>\n

The scientists also observed changes in immune signaling pathways and increased activity of regulatory immune cells that help control inflammation.<\/p>\n

Together, these findings suggest vitamin D may help promote a more balanced, protective immune response to the gut microbiome.<\/p>\n

Vitamin D supplementation was also associated with improvements in disease activity scores and a stool-based marker of inflammation.<\/p>\n

However, the authors emphasize the study was small and not designed to establish cause and effect.<\/p>\n

\u201cWe saw encouraging signals, but this was not a randomized trial,\u201d Dr. Gubatan said.<\/p>\n

\u201cThese findings need to be confirmed in larger, controlled studies.\u201d<\/p>\n

The researchers caution that patients should not change their vitamin D use without medical guidance.<\/p>\n

\u201cVitamin D is widely available, but dosing needs to be individualized, especially in patients with chronic inflammation. Patients should work with their healthcare team,\u201d Dr. Gubatan concluded.<\/p>\n

The study<\/a> was published in the journal Cell Reports Medicine.<\/p>\n

_____<\/p>\n

John Gubatan et al. Multi-omics reveal vitamin D regulation of immune-gut microbiome interactions and tolerogenic pathways in inflammatory bowel disease. Cell Reports Medicine, published online March 26, 2026; doi: 10.1016\/j.xcrm.2026.102703<\/p>\n","protected":false},"excerpt":{"rendered":"New research suggests that vitamin D supplements can reshape how the immune system responds to gut bacteria in…\n","protected":false},"author":2,"featured_media":405895,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[78],"tags":[1669,18,39603,16118,135,19,1666,183589,183590,99,6364,17,6106,36809,11699],"class_list":{"0":"post-405894","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-health","8":"tag-bacteria","9":"tag-eire","10":"tag-gut","11":"tag-gut-microbiome","12":"tag-health","13":"tag-ie","14":"tag-immune-system","15":"tag-immunoglobulin-a","16":"tag-immunoglobulin-g","17":"tag-inflammation","18":"tag-inflammatory-bowel-disease","19":"tag-ireland","20":"tag-microbiome","21":"tag-vitamin","22":"tag-vitamin-d"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ie\/116298543611666466","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/405894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/comments?post=405894"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/posts\/405894\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media\/405895"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/media?parent=405894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/categories?post=405894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ie\/wp-json\/wp\/v2\/tags?post=405894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}