One of the main mechanics of the Pokémon Mystery Dungeon series has been Hunger.
However, in this game, Hunger is absent for the major part of the game. Throughout the game, you continue to get increased Hit Points as you progress, like in the previous games, but you never have to worry about the Hunger meter decreasing.
There are, however, several dungeons in the post-game where the Hunger mechanic is present.
In these dungeons, your hunger meter is constantly depleting, so you need to find special Apples which increase the hunger value giving you extra time. And if your hunger meter depletes completely, then your Pokémon will start losing HP when moving.
The dungeons that Hunger is in are: The Furthest Cape, Sleeping Icy Cave and Non-Changing Land.
