Most people in the study
reduced their calorie intake
From BBC Health - April 05, 2006 10:38
Scientists have found tangible signs that a low-calorie diet could help people live longer.

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A six-month study showed cutting calories lowered insulin levels and core body temperatures.
The Louisiana State University team said further studies were needed to confirm the findings, in the Journal of the American Medical Association.
A British expert said the research was interesting, but that many other factors affected life expectancy.
This study reinforces the importance of being a healthy weight
Dr Frankie Phillips, British Dietetic Association
It is known that reducing the amount of calories that rodents and other animals take in long-term lengthens their life.
It is thought that restricting calorie-intake affects processes in the body such as metabolism and sensitivity to insulin - as well as the health benefits from losing weight.