Cell Metabolism：较高蛋白质饮食或有助于延寿

有关食材天和的上新理论正逐渐成形，无疑会掀起上新的争议。

两项刊出在Cell Metabolism上的研究者，一项是针对猫，另一项是针对人类文明，发现口服低蛋白和大量营养，最大限度天和和增强健康。研究者挑战了传统意义的饮食著手和总括。

两项研究者的作者认为，上限卡路里口服帮助延长猫和其它鸟类延长停留时间的因素，不是因为缩减了卡路里口服，而是因为缩减了蛋白口服。

研究者结果能解释为什么略微丰满的人比瘦的皮包骨头的人平均停留时间更长。

早期中有：

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