Limiting food intake in monkeys fails to extend survival
Decades of research have linked low-calorie diets with extended survival, but a new report finds that rhesus monkeys on strict diets don’t live longer than their counterparts getting a standard diet.
The findings, reported August 29 in Nature, run counter to a 2009 study from the University of Wisconsin–Madison that showed a clear survival advantage in a calorie-restricted group of similar rhesus monkeys. Scientists suspect that differences in the two studies’ designs might explain the discordant findings, leaving the question of longevity still dangling.
Both research groups will need to wait another de