"Beyond a certain point, your body senses the deficiency and decreases your metabolism. "
As far as I'm able to tell this is a myth. There isn't any scientific evidence supporting it, and quite a bit which implies it is impossible - if a body could run itself more efficiently then it would by default. Calorie consumption is necessary to sustain life.
This myth is usually perpetuated by people who believe they are on calorie restricted diets, but who are actually eating more than they think.
As far as I'm able to tell this is a myth. There isn't any scientific evidence supporting it, and quite a bit which implies it is impossible - if a body could run itself more efficiently then it would by default. Calorie consumption is necessary to sustain life.
This myth is usually perpetuated by people who believe they are on calorie restricted diets, but who are actually eating more than they think.