This trope describes a character who's notorious for ignoring their body's need for nutrition and has to be reminded to eat. They'll go out into the wilderness without food supplies, and will forget dinnertime at home because what they're doing is so much more interesting. Sort of the opposite of Big Eater, especially if the character doesn't quite suffer all the ill effects of poor nutrition. The Absent-Minded Professor may exhibit this trope. It may also be a temporary effect of Just One More Level. Examples of Forgets to Eat include: