輕斷食一般指16+8輕斷食，或是5+2輕斷食吧？

細胞自噬（Autophagy）應該是生物理論基礎。

"What is the best way to benefit from autophagy? Research has shown that autophagy kicks in after 12-16 hours of continuous fasting. There are many different methods to reach 12-16 hours of fasting, and intermittent fasters choose a method depending upon their eating preferences."

 

"The 16/8 method involves fasting everyday for 16 hours and eating a restricted diet during the remaining 8 hours of the day. If you’re a breakfast-skipper, this method is ideal, as it can be achieved by simply skipping dinner and breakfast. While 16/8 may be the easiest fasting method, it comes with its own drawbacks. Inducing autophagy everyday may not be good for the body’s metabolism. Furthermore, 16 hours of fasting is just enough to initiate autophagy in many individuals. Therefore, a longer fasting period may be necessary to reap substantial benefits."

 

"The 5:2 diet is an intermittent fasting strategy more appropriate to beginner fasters, but has been shown to be an effective weight-loss strategy while maintaining lean muscle mass. In this dieting strategy, one may eat normally during five days of the week and restrict daily caloric intake to 500 calories during the remaining two days of the week. This provides cells with a minimal intake of energy, forcing them to supply the rest through autophagy."