Gluttony (ability)

Effect

A Pokémon with Gluttony will use a pinch berry when its HP drops to 50%, rather than the usual 25%.

Pinch berries are: Figy, Wiki, Mago, Aguav, Iapapa, Liechi, Ganlon, Salac, Petaya, Apicot, Lansat, Starf, Micle and Custap. (Their descriptions state that they work in a pinch.)

Game descriptions

Diamond​/​Pearl
Platinum
HeartGold​/​SoulSilver
Encourages the early use of a held Berry.
Black​/​White
Black 2​/​White 2
Encourages the early use of a held Berry.
X​/​Y
O.Ruby​/​A.Sapphire
Makes the Pokémon use a held Berry earlier than usual.
Sun​/​Moon
Ultra Sun​/​Ultra Moon
Makes the Pokémon eat a held Berry when its HP drops to half or less, which is sooner than usual.

Pokémon with Gluttony

#
Name
2nd ability
Hidden ability
019 Rattata
Alolan Rattata
Hustle Thick Fat
020 Raticate
Alolan Raticate
Hustle Thick Fat
088 Grimer
Alolan Grimer
Poison Touch Power of Alchemy
089 Muk
Alolan Muk
Poison Touch Power of Alchemy
213 Shuckle Sturdy Contrary
263 Zigzagoon Pickup Quick Feet
264 Linoone Pickup Quick Feet
511 Pansage Overgrow
512 Simisage Overgrow
513 Pansear Blaze
514 Simisear Blaze
515 Panpour Torrent
516 Simipour Torrent
631 Heatmor Flash Fire White Smoke

Gluttony as a hidden ability