If you want to live long, do not even think to eat a little more. Because the study found to extend the life, a person must eat less.
The old adage says that a good diet is more healing than a doctor.
But it turns out it is not just a saying. Quoted from AsiaOne, Friday
(07/19/2013), has no scientific evidence to show how cutting calories can help extend the life.
However, scientific research published in Nature Communications, on Tuesday, could provide a new explanation. Calorie restriction can encourage the growth of intestinal bacteria associated with increased life span in mice, according to the news of a scientific magazine.
Chinese researchers gave mice a high-fat diet and low-fat, some are given as much food as they want (free-feeding), while others were under caloric restriction (only given 70 percent of the food groups of free-feeding).
The results showed that the calorie restriction group and the low-fat live longer. While rats are eating high fat foods as much as they want even shorter-lived.
Analysis of mouse droppings showed that beneficial bacteria correlated positively with life span and enriched by caloric restriction, while bacteria are negatively correlated with life span is reduced by restrictions.
"Scientific research has pointed to results that calorie restriction increases life span, but the unanswered questions are why and how," said Zhao Liping, as professor of microbiology specialist at Shanghai Jiao Tong University, who led the study.
"So this study provides a new perspective to explain the relationship between caloric restriction and life span, that calorie restriction may give effect to the change of intestinal bacteria," he added.
In 1935, U.S. biochemist and nutritionist Clive M. McCay showed that calorie restriction increases life span of mice, triggering further research and experiments in the field.
Then, the relationship between calorie restriction and longevity were tested on yeast, zebra, fish, spiders, dogs, monkeys and orangutans.
Zhao said, "Although we found no relationship between caloric intake, intestinal bacteria, bacterial, and life span, this is clearly not the only factor that determines the life span."
"On the other hand, we are still not sure about how calorie restriction mechanism to change the bacteria. So we had a project in this direction," added Zhao.
