Design and conduct of the CALERIE study: comprehensive assessment of the long-term effects of reducing intake of energy.

ABSTRACT:

Background

In a robust and consistent manner, sustained caloric restriction (CR) has been shown to retard the aging process in a variety of animal species. Nonhuman primate studies suggest that CR may have similar effects in longer-lived species. The CALERIE (Comprehensive Assessment of the Long-term Effects of Reducing Intake of Energy) research program is the first systematic investigation of CR in nonobese human beings. In the phase 2 study, it is hypothesized that 2 years of sustained CR, involving a 25% reduction of ad libitum energy intake, results in beneficial effects similar to those observed in animal studies. This article presents the design and implementation of this study.

Methods

The study is a multicenter, parallel-group, randomized controlled trial. A sample

SUBMITTER: Rochon J 

PROVIDER: S-EPMC3032519 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature