Now, if you put the body in a situation where it has zero calories, is it going to find homeostasis for this position? Of course not. This is not sustainable. Instead of trying to adapt to an impossible circumstance, the body instead prepares for the future. It knows you will need to eat something eventually, and to get to that point—say, to potentially catch an animal for consumption—it will help you. This is done by dramatically increasing growth hormone, even upwards of 2,000 percent, to maintain muscle mass all while body fat is being metabolized for energy.
