Comparative and Meta-Analytic Insights into

Life Extension via Dietary Restriction


This project is an example how a meta-analysis can be enhanced

using bibliometric information and visualisations (i.e. research weaving).

It is an extension of our published meta-analysis (Nakagawa et al. 2014)

quantitatively examining whether dietary restriction

 extends the lifespan of a wide range of species.


Access our project via:

the database synthesizing the collected literature and extracted data:

online interactive visualisations of the key database contents:




Learn more about the project: 


why what when where how who

Full paper describing the dataset, methods and results:

Nakagawa, S., Lagisz, M., Hector, K. L. and Spencer, H. G. (2012),

Comparative and meta-analytic insights into life extension via dietary restriction.

Aging Cell, 11: 401–409. doi: 10.1111/j.1474-9726.2012.00798.x