A new study suggests that specific gut bacteria may influence the risk of developing type 2 diabetes years before diagnosis. Researchers identified nine bacterial species consistently associated with either higher or lower diabetes risk, with some effects appearing to depend on dietary fiber intake. Notably, the relationship between Akkermansia muciniphila and diabetes varied according to fiber consumption, highlighting the importance of diet–microbiome interactions. The study also identified microbial metabolic pathways linked to future diabetes risk. While these findings cannot prove cause and effect, they may pave the way for personalized strategies that use gut microbiome profiles and diet to help prevent type 2 diabetes.
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