Long-term fish intake preserves kidney function in elderly individuals: the Ikaria study.

Objectives: The aim of this work was to evaluate the correlation between the amount of weekly fish intake and kidney function as measured by creatinine clearance (CCr) rate among elderly inhabitants of Ikaria Island, a place that has been related to an increased rate of longevity.

Methods: From June to October of 2009, 673 males and females, aged 65-100 years and long-term residents of Ikaria Island were enrolled. Of those, 328 (75 ± 7 years) were males and 339 (75 ± 6 years) were females.