Longevity & AgingTaurine Levels Don't Decline With Age in Humans, New Study Finds
A 2025 study in Aging Cell challenges the hypothesis that taurine deficiency drives human aging. Researchers measured serum taurine in 137 men (ages 20–93, both active and inactive) and found no correlation between taurine levels and age, muscle mass, strength, physical performance, body composition, insulin sensitivity, or mitochondrial function. While prior animal studies showed taurine declining with age and supplementation extending lifespan in worms and mice, this human data suggests the relationship does not translate directly. The findings caution against extrapolating animal taurine research to humans and question whether taurine supplementation would meaningfully slow aging or improve healthspan in the general adult population.
