Gut microbiota composition explained more variation than chronological age in nearly all inflammatory cytokines and most physiological measures examined, with specific microbial profiles linked to markedly different patterns of inflammation across adulthood. People with the Bacteroides 2 enterotype showed an inflammaging-like profile decades earlier than other groups and had a higher risk of subsequent disease, while a high-diversity microbiota profile was associated with lower inflammation and reduced disease incidence.
