Hi!
The link below is an article claiming that "CR reduces the rate of biological aging":
http://www.empr.com/news/aging-caloric-restriction-geroprotective-therapies/article/664118/
However, the study is the Calorie Study, which as we know really compares a group of obese individuals with a normal group; so it's basically a study showing the advantages of not being obese.
-- Saul