Restricting Calories Does Not Necessarily Extend Monkeys’ Lives
2012 09 10

From: DiscoverMagazine.com

A calorie-restricted diet can extend the lives of organisms from yeast to fruit flies to rodents, as well as improving their health and preventing disease. But just because cutting calories helps animals with short lifespans doesn’t mean that humans will reap similar benefits. So the 2009 discovery that calorie-restricted diets also increase the longevity of already-longer-lived rhesus monkeys was exciting news.

But don’t pull out a calorie calculator quite yet. The latest word on the subject, from a new paper in Nature, suggests that the 2009 study might not tell the whole story: this team found that caloric restriction doesn’t actually grant rhesus monkeys longer lives.

In this new 23-year-long study from the National Institute on Aging (NIA), rhesus monkeys, which have an average lifespan of 27 years in captivity, ate either a nutritious diet as control subjects or the same diet slashed by 30 percent. Some of the monkeys had their calorie intake restricted from a young age, while for others, the restricted diet only set in when they were 16 to 23 years old.

For the old-onset monkeys, a restricted diet improved health but did not increase longevity or influence cause of death. But among the young-onset monkeys, cutting calories significantly improved neither health nor longevity. (Although some of the young-onset rhesus monkeys are still alive, based on estimated probability statistics, there is less than a 0.1 percent chance that the calorie-restricted subjects will significantly outlive the controls.)

[...]


Read the full article at: discovermagazine.com





Related Articles
Ecuadorean Villagers May Hold Secret to Longevity
Fountain of Youth in Bile? Longevity Molecule Identified


Latest News from our Front Page

Gov’t Fear Factory: ISIS Is Here, Just in Time for Another 9/11 Anniversary
2014 08 23
The government has been doing a whole lot of talking lately about the 9/11-style threat ISIS poses on American soil, how ISIS is like ’nothing the Pentagon has ever seen’ and how ISIS is likely already here... and all just in time right before another 9/11 anniversary! Fancy that. Considering it’s on record where ISIS got a lot of its military ...
France delivered arms to Syrian rebels, Hollande confirms
2014 08 22
President Francois Hollande said on Thursday that France had delivered weapons to rebels battling the Syrian regime of Bashar al-Assad “a few months ago.” The deliveries took place “a few months ago, when the Syrian rebels had to face both the armies of the dictator Bashar al-Assad and this terrorist group Islamic State,” Hollande told reporters on a tour of the ...
Brooklyn DA exposes hidden Child Sexual Abuse in the Orthodox Jewish Community
2014 08 22
Comment: We all know that the sex abuse cases within the Catholic church have been plastered all over the media in the last 6-8 years, but when do you ever hear about the rapes, sexual molestation and child sex abuse cases within the jewish orthodox community? Is the media helping to cover it? Will they give the same treatment of ...
California’s Economic Collision Course: Immigration and Water
2014 08 22
You have heard it before: “As California goes, so goes the nation.” If that is the case, the national economy will be harmed for decades to come because of California’s misplaced priorities today. Indeed, by emphasizing high-speed rail over water and failing to deal with its debt crisis, California poses a long-term threat to our national economy and ...
ISIS offered to swap Foley for ’Lady Al Qaeda’ - neuroscientist MIT-graduate
2014 08 21
An MIT-educated neuroscientist terrorist known as ’Lady al Qaeda’ was named on a ’laundry list’ of demands from ISIS captors holding James Foley named, it was revealed today. Petite mother-of-three Aafia Siddiqui is currently serving 86 years in a Texas jail after being arrested with plans for a ’mass casualty attack’ in the US, including infecting people with Ebola and a ...
More News »