In 2022 it was definitely hunger as I stopped eating high calorie stuff completely. But that level of eating was unsustainable and only possible because of the health issue I was forced to. I was basically thinking about food 24/7.

However after I started eating less healthy food it definitely can be. That's the issue I have atm, giving up food I enjoy vs feeling high calorie withdrawal (at least relatively, I eat a lot less now than before).