Taurine deficiency as a driver of aging

Objective: To explore whether circulating taurine declines with age and whether supplementation can reverse age-associated biomarkers in mammalian models. Using comparative profiling across age groups and interventional supplementation experiments, investigators measured circulating taurine, tissue markers of mitochondrial function, metabolic status, and inflammatory tone. Older animals exhibited lower taurine levels than younger controls, alongside changes in glucose metabolism, muscle function, and immune signaling consistent with biological aging. Taurine administration partially normalized several of these measures and improved performance-related endpoints in selected assays. The data suggest a correlation between taurine depletion and aging phenotypes, although causality remains difficult to establish because taurine status likely reflects diet, synthesis capacity, and renal handling. The work provides a framework for linking amino acid homeostasis to longevity biology and supports additional studies in humans to determine whether declining taurine is a marker, mediator, or consequence of aging.