Unfortunately, for maximum benefit, people would probably have to reduce their caloric intake by roughly thirty per cent, equivalent to dropping from 2,500 calories a day to 1,750.

遗憾的是，想要获得最大效益，人们可能不得不减少大约30%的热量摄入，相当于将每天摄入的2500卡路里降至1750卡路里。