The Brazilian Longitudinal Study of Aging (ELSI-Brazil) collects data on a nationally representative sample of community-dwelling adults aged 50 years or older. The first wave of ELSI-Brazil was conducted in 2015-16, the second wave in 2019-21, and the third wave in 2023-24. The core cross-sectional data of three waves are available on this homepage for the research community and health professionals after registration.