Then add in a fast metabolism. Until middle age, I literally couldn't eat enough food that I remotely enjoyed to hit target weight for my height.
I guess the easiest way to describe my subjective experience is that the "You're hungry, eat" audio channel is turned waaay down in my brain, to the extent that anything moderately attention-capturing overrides it (a project, reading, hiking, tv, etc).
I'll feel the physical and psychological symptoms of hunger (body feels cold, irritable, low energy) before I'll feel the signal to eat.
I'd be fascinated to get my gut biome sequenced + see my natural GLP-1 levels, as I've always been like this.