One doctor called it the "Fast Way to Health." Another called it "starvation diet."
It is very easy to lose weight by fasting. Unhealthy, and in the end counterproductive, but easy. You starve yourself, you lose weight. But, you should know what happens when you do this first.
When you starve yourself (which is what fasting is), you inhibit your body's ability to burn fat. You need to remember that calories are simply a unit of energy, and your body needs energy every day to survive. So, when you don't eat, about 300,000 years of evolutionary drive kick in and your body goes into starvation survival mode. It sets of a chain of processes all designed to slow down your metabolism (the rate at which you burn calories) because your body always wants calories in to be equal or greater than calories out. So your brain starts sending signals to your thyroid to slow things down.
Then, you need to understand that body fat is your body's long term energy survival source. So, wanting to survive as long as ...