“Hunger is the best sauce in the world,” wrote Miguel de Cervantes in Part II, Chapter V, of Don Quixote, (1615).
I don't think regularly feeling hunger is very desirable or necessary, let alone sustainable. It takes a long time to lose weight and being miserable makes it less likely you'll see it through. Being a little hungry just as the meal is being served, fine. Living in a frequent or constant state of hunger is not a successful path to healthy and sustainable weight loss.