Nowadays , along with the development of economy and rising of the living standards , the status of population aging gets more and more severe in China.Since the incidence of age-related diseases straights up , more and more attention was paid to the search for effective anti-aging methods and prevention of geriatric diseases .In recent researches , dietary restriction ( DR) is confirmed to prolong the lifespan in mammal effectively , and to prevent the age-related diseases .In the context of avoiding malnutrition , proper DR has been a hot topic in anti-aging research.This article reviewed the roles and possible mechanisms of DR in anti-aging.%目前随着经济发展及生活水平的不断提高，中国老龄化情况日益严重，各种衰老相关疾病的发病率也呈直线上升。因此，寻找有效的延缓衰老方法、预防老年病的发生越来越受到人们的关注。近几年研究表明，饮食限制（ DR）可以有效地延长哺乳动物的寿命，同时延缓老年病的发生。在避免营养不良的前提下对饮食摄入进行限制，现今已成为抗衰老领域的一大热门方向。本文就DR在延缓衰老中的作用及其可能机制的研究进展作一综述。
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