Diet and longevity

Dietary restriction – reduced food intake without malnutrition prolongs life span in yeast, worms, flies, rodents, monkeys and possibly humans. But dietary restriction also often impairs fecundity, possibly because maintenance of the overall body mass (the non -germline parts of an organism), and thus long life, do not give space for reproductive activity. Biologists have…

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diet and longevity

It is well established that reducing food intake increases life expectation.Studies of longevity in simple organisms have helped an understanding of how caloric restriction might increase life-span. In the budding yeast Saccharomyces cerevisiae, nutrient withdrawal extends longevity through a pathway that requires the enzyme Sir2. Overproducing this enzyme can prolong the life of yeast grown…

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