While agreeing, I would add, when trying it, do it gradually. First give up snacks, then narrow the gaps, then skip breakfast while widening the gap, then narrow it again. Two weeks each step at least. When in discomfort go back a step. While doing so also change what you eat, also very gradually. If you are like me and hate salad, just peel a carrot, cut a cabbage, eat them. I don’t bother making salads. To me it is a tax to pay. I eat them cause I must. Over time I started noticing they taste ok, to ahungry person. But the real joy of comes after paying that tax.