Naturally thin people. like SG, and many other may be "unable to generate any hedonic terminal desire for food."
OK, so what does that mean?
One of the reasons that obese people eat is due to excessive "hedonic terminal desire for food." OK, we eat because we desire food, and hedonic (we like food) terminal (immediate reward) desire is greater than any non-terminal - non-hedonic desire to be thin.
By the way, will power does not impact on hedonic terminal desires, according to Irving, and that seems likely.
So we have dueling desires, the strongest will win. All we need to do is let go of all desires, especially to eat food. The Stoics have a technique, a bit of philosophy, a bit of practice, and we will see if it works.
Our culture, families, environment, and the like are all a bunch of abusive food pushers. We are screwed unless we get tough enough to avoid all contact or become able to not eat at a smorgasbord.
I am about ready to move into a whole in the woods to get away from all the pressure to eat.
Does anyone have a good long term solution?