[Chrupiter]

> If I'm hungry, I'm in calorie deficit.

That's actually not true. When your stomach has been empty for two hours, it begins contracting to sweep remaining food into the intestines. This rumbling is called 'borborygmus'. Cells in the stomach and intestine produce ghrelin, a hormone that triggers feelings of hunger. Src: https://www.sciencefocus.com/the-human-body/what-happens-in-... So, the body isn't so clever to recognize how much fat you've stored before sending 'hunger' signals.

[rho4]

That is probably correct. I still do believe that being aware of my hunger feeling and learning to monitor it was the key to losing weight for me.

[Chrupiter]

Upon reflection, you're probably partially correct too. There are other factors apart from the level of food in the stomach, and I'm not knowledgeable enough to make definitive statements. For example, the amount of fibre you ingest has an effect on how long you feel stuffed.