Ryan,

When you fast for a significant period of time, there are hormones that are more prevalent/available, i.e. Growth Hormone, etc. I will not bore you with a list of metabolites, hormones or other compounds you body manufactures in the fasting state. Suffice to say that when you adjust to fasting for 20 hours a day, you get much more efficient at using the resources available physiologically. Protein and nutrient utilization and your overall metabolism will benefit greatly.
Typically, when working out and following the warrior diet, I lose about pound a week. That's not much on the whole, until you take account of how the appearance changes while weight loss and building muscle is taking place -- at the same time.
Just some 'food' for thought. I've been on this diet since late 1999, and I have not been disappointed yet.

Good Luck,

WarVader.