system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Dessert Stomach

ELI5: Why does it often feel as though we have a "dessert stomach" after meals? For example the thought of any more sushi is horrifying but you proceed to eat 3 scoops of ice cream.
gpt
Humans have a certain amount of evolutionary incentive to eat a variety of flavors, since that leads to getting a greater variety of nutrients/vitamins. So if you've already eaten a lot of sushi, then any more sushi sounds less appetizing than switching to a different flavor.


But it's more likely that dessert is just more enjoyable to consume than other foods, so you are eating it more for your own pleasure rather than hunger.