Animal study · Supplements / medicine · 25 Aug 2026
A geroprotective probiotic and its functional metabolite counteract inflammaging to extend healthspan
Source: Nature Aging
What the research found
Study. Lu, Ping, Han and colleagues (Nature Aging, 25 Aug 2026; EurekAlert 31 Aug) built a microbiome aging clock (MicroAge) and found Bifidobacterium pseudocatenulatum depleted with age across Chinese cohorts. In naturally aged mice, oral B. pseudocatenulatum improved gut homeostasis, eased multi-organ inflammaging, and helped cognitive-motor scores. They credit a metabolite, 5-aminovaleric acid betaine (5-AVAB), which also declines with age in people. Mouse healthspan is not a human probiotic prescription. Commercial anti-aging probiotic claims remain weakly evidenced until human outcome trials exist.
Evidence level: Animal study. Results in animals or cells often don't carry over to people.
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