I think the of the ways we have gotten ourselves (as a society) into this pickle is forgetting the nourishment of food. I think many times when people are hungry, their body is looking for some specific vitamin, mineral or macronutrient that it needs. If you feed it food in response to that hunger that doesn’t contain that need, it will just make you hungry again in a short amount of time, still trying to get that need met. In the meantime something has to be done with the food you did eat, so it gets shuttled off into fat. The cycle repeats.
Robert Lustig often talks about the children he sees in his practice that are grossly overweight but also show many classic signs of malnourishment. I am sure those kids get hungry because their bodies need nutrients, so they eat. The problem is that the food they eat don’t give them what they really needed, so it gets shuttled off into fat, then they are hungry again.
I know feel different kinds of hunger, I imagine it is my body’s way of guiding me to giving it the right sort of food. My grandmother, who was never overweight, rarely just said, ‘I’m hungry.’ She was always hungry for something. I think she was in tune to the nutrients and macros she needed.