[sandGorgon]

There have been many, many papers that show that starvation mode does not kick in until after about 36-48 hours of fasting. Intermittent fasting is usually a 16-24 hour fast.

[jamiecurle]

For those interesting in the papers [Leangains][0] has a long informative narrative connecting the papers together.

[0]: http://www.leangains.com/2010/10/top-ten-fasting-myths-debun...