Cheek Pouch

In Pokémon ChampionsGen VI

Game

Pokémon Champions

If this Pokémon eats a Berry, it restores 1/3 of its max HP after the Berry's effect.

Who has it: 6 Pokémon
Showdown rating

How it works in Champions

If this Pokémon eats a held Berry, it restores 1/3 of its maximum HP, rounded down, in addition to the Berry's effect. This effect can also activate after the effects of Bug Bite, Fling, Pluck, Stuff Cheeks, and Teatime if the eaten Berry had an effect on this Pokémon.

“The Pokémon's HP is restored when it eats any Berry, in addition to the Berry's usual effect.”
In-game text, Scarlet & Violet

Changes over time

How Cheek Pouch changed from game to game, newest first.

Gen VIII
… the effects of Bug Bite, Fling, added: Pluck, Stuff Cheeks, and ~~dropped: Pluck~~ added: Teatime if the eaten Berry ~~dropped: has~~ added: had an effect on this Pokémon.

Descriptions: Pokémon Showdown’s for each generation, and PokéAPI’s notes on the changes they don’t show. Champions: Pokémon Showdown.