Petite Appetite YKTTW Discussion
A character has a notoriously small appetite.Better Name Needs Examples
This is the opposite of a Big Eater. A character simply doesn't eat very much or have a very big appetite. Maybe they prefer other activities to eating, or can be satisfied with small amounts of food. Maybe they lose their appetite when they get nervous. Usually this sort of behavior is quickly explained by eating disorders or illness, but such is not always the case.