Is taurine an aging biomarker?

Researchers measured taurine, a compound made and used by the body, in blood samples from adults of different ages. They checked whether taurine levels changed consistently as people got older. Taurine was lower in some older adults, but the pattern was not consistent enough to accurately measure a person’s biological age, meaning how old their body seems to be based on health measures. The study was observational, so it could not show that taurine levels cause aging or that taking taurine would slow it.

What this means for you: This does not provide a good reason to buy taurine supplements or use taurine as a personal aging test. Taurine may be linked with aging in some groups, but this study does not establish it as a reliable biomarker or treatment target.