Supplements / medicine · 7 Sept 2026
Your gut microbiome may be more contagious than scientists thought
Source: ScienceDaily
What the research found
Study. University of Vienna researchers writing in Nature used reverse-ecology genomics on thousands of gut isolates and metagenomes. Familiar species split into adapted populations, some tracking with older age, IBD, colorectal cancer, and type 2 diabetes. Competitive lineages also appear to have spread across continents in decades. This is evolutionary mapping, not proof that you catch disease from a roommate and not a probiotic prescription. Diet, medicines, and contact may all shape which strains settle.
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