Ideally, our fat stores release leptin into the bloodstream, which tells the body that energy is available, which then signals us to eat less.
As we lose fat, leptin decreases and appetite increases. This brings on increased appetite, since the body is scrambling to resupply energy reserves.
But if we don’t reach for the right foods, we also lose muscle during dieting, which we don’t want.
And caveman wiring makes the body hold on to energy reserves and to do everything in its power to get those fat stores back, because the body thinks that it is starving and goes into heavy-duty “let’s get back to the way the body was before” mode.