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Sunday, September 02, 2012

No to caloric restriction


Want to Live Longer? Don’t Try Caloric Restriction

The latest research on caloric restrictions shows that near-starvation diets may not be the Fountain of Youth

Decades ago, in the 1930s, researchers working with lab rats made an interesting discovery. Animals that had been deprived of food seemed to live longer than rodents that were fed to satisfaction, raising the intriguing idea that maybe near-starvation was a good, rather than bad thing, for health.
Follow up studies, particularly in yeast, confirmed the trend and some forward-thinking scientists even began restricting their caloric intake in the hopes of seeing some extra years. But the latest research conducted on close human cousins, rhesus monkeys, shows that the connection may not be as solid as once hoped.
Published in the journal Nature, the results suggest that dramatically cutting back on daily calories — by 30% — does not help monkeys to live longer than those who ate normally. The restriction did help older monkeys to lower their levels of triglycerides, a risk factor for heart disease, but otherwise conferred no significant health or longevity benefit./.../


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