Ronald Bailey looks at the too-good-to-be-true claims made for caloric reduction as a life-extending tool:
Last week, two research teams reported to great fanfare that restricting the calories consumed by rhesus monkeys had extended their lifespans. Calorie restriction is thought to increase longevity by boosting DNA repair. The idea is that the mechanism evolved so that creatures on the verge of starvarion could live long enough to reproduce when food becomes plentiful again. But did the experiments really show the CR works?
In my earlier blogpost on the research results, I noted that some experts quoted in the New York Times were not convinced. Why? Because the difference in actual death rates between the dieting monkeys and the free feeding monkeys was not statistically significant.
This doesn't necessarily derail the notion that calorie restriction may be associated with increased lifespan, but the way this study was performed does not appear to prove anything due to rigging of the data.Posted by Nicholas at July 13, 2009 12:28 PM
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