Imho, you first need to purify your body (Avoiding Grain) until you reach a state where you can live without food (Closing the Gate).
http://sensualanimist.com/2012/10/16/taoist-diet-bigu-avoiding-grains
A modern approach to bigu would be http://en.wikipedia.org/wiki/paleolithic_diet .
Basic Principle is living like before the advent of Agriculture, and from my own experience i can say it works well.
>Chris<
Hi my name is Chris and im a looooong time lurker.
I've got multiple interests, to name a few:
QiGong, Tai Chi Chuen, KungFu (Soft), Alchemy extern (western) intern & mental, Magic (Ritual & QBLH).
I don't know what else to say
>Chris<