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    High-fat diets cause gut bacteria to enter brain, study finds

    2026-03-16T15:21:00Z

    A new study, performed using mouse models, establishes that live bacteria from an imbalanced gut microbiome can enter the brain via the vagus nerve. The vagus nerve connects the brainstem to the heart, lungs, and major abdominal organs, including the stomach, intestines, liver and more.