The power to eat massive quantities of food to no ill effect.
The user can eat massive quantities of food at once to no ill effect, this can extend into versions of Matter Ingestion. This power can be very useful, especially for those that possess an abnormal nature. Because of this, nutritional intake needs are a great deal higher than that of normal, requiring more food in order to keep their strength up.
Lilotto (Bleach) using "The Glutton" to eat the Soul Reapers.
Aaroniero Arruruerie (Bleach) using "Glutoneria" to eat Hollows.
Gluttony (Fullmetal Alchemist: Brotherhood) lives up to his name.
Lionel (Isekai Shokudo) has developed an immense appetite for Katsudon…
…able to consume multiple servings at once.
Taiga Kagami (Kuroko no Basket) is a glutton and is able to eat at least five times a normal meal.
Jewelry Bonney (One Piece) was known as "Big Eater".
Wapol (One Piece) eats pretty much anything at unlimited amounts, even a knife.
Many D. Family members (One Piece) are shown to have big appetites.
Monkey D. Luffy (One Piece) appetite is immense to the point, he can devour massive amount of biscuits non stop for 11 hours.
"Big Mom" Charlotte Linlin’s (One Piece) love for sweets gives her a destructive eating disorder. Every once in a while, she'll start to rampage in search of what she wants to eat. In this state, she will destroy everything in her path, even her own children.
At six years old, Charlotte Linlin (One Piece) appetite went out of control to the point...
she accidentally ate Carmel and her friends of the Sheep's House.
As children, Ace, Sabo and Luffy (One Piece) were able to consume…
…dozens bowls of ramen.
Mamodo (Zatch Bell!) have much greater appetites than humans. Their favorite food is fish.