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A long-running study is re-affirming the life-extending benefits of calorie-restricted diets. It overturns a study from 2012 indicating otherwise. The 25-year experiment shows that rhesus macaques, when eating 30% less than normal, are twice as likely to live beyond those who could eat whatever they want.


Above image: A photo taken of two rhesus macaques partaking in the University of Wisconsin-Madison study. The picture, which was taken back in 2009, shows Canto (left) and Owen (right). Shockingly, Canto, who is on a CR diet, is 29, while Owen, who receives pellets consisting of 30% sugar, is 27. Credit: University of Wisconsin-Madison, photo by Jeff Miller.

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I find it interesting to see this study pop up on here. One the biology department seminar talks at the school I am at this year had someone come in and talk about diet restriction work in nematodes (she was actually interviewing for a faculty position). Her final statement, which was a quote from a colleague, was "anything good for you is at least slightly irritating." They were finding that by limiting food consumption that life span was increased by over double, but that the deprived nematodes also "acted younger." Fascinating stuff.