Cell Metabolism：低蛋白质饮食或更进一步延寿

有关粪便永光的新原理自始逐渐成形，无论如何会引致新的质疑。

两项发表在Cell Metabolism上的研究工作，一项是针对一只猫，另一项是针对人类，推测摄入较低蛋白质和大量淀粉，借以永光和增强有益。研究工作挑战了传统的饮食计划和包罗万象。

两项研究工作的作者认为，限制卡路里摄入试图延长一只猫和其它物种延长更长的原因，不是因为下降了卡路里摄入，而是因为下降了蛋白质摄入。

研究工作结果能说明了为什么略微纤细的人比瘦的皮包骨头的人平均更长更慢。

原始记事：

Morgan E. Levine, Jorge A. Suarez, Sebastian Brandhorst, Priya Balasubramanian, Chia-Wei Cheng, Federica Madia, Luigi Fontana, Mario G. Mirisola, Jaime Guevara-Aguirre, Junxiang Wan, Giuseppe Passarino, Brian K. Kennedy, Min Wei, Pinchas Cohen, Eileen M. Crimmins, Valter D. Longo. Low Protein Intake Is Associated with a Major Reduction in IGF-1, Cancer, and Overall Mortality in the 65 and Younger but Not Older Population. Cell Metabolism, 4 March 2014; DOI: 10.1016/j.cmet.2014.02.006

Samantha M. Solon-Biet, Aisling C. McMahon, J. William O. Ballard, Kari Ruohonen, Lindsay E. Wu, Victoria C. Cogger, Alessandra Warren, Xin Huang, Nicolas Pichaud, Richard G. Melvin, Rahul Gokarn, Mamdouh Khalil, Nigel Turner, Gregory J. Cooney, Did A. Sinclair, Did Raubenheimer, Did G. Le Couteur, Stephen J. Simpson. The Ratio of Macronutrients, Not Caloric Intake, Dictates Cardiometabolic Health, Aging, and Longevity in Ad Libitum-Fed Mice. Cell Metabolism, 4 March 2014; DOI: 10.1016/j.cmet.2014.02.009