Sitiomania is an abnormal craving for particular types of food, an intense, narrow appetite that goes beyond ordinary liking. The term belongs to older medical vocabulary, describing the consuming desire for specific foods seen in some psychological and neurological conditions. It overlaps with pica, the craving for non-foods, and with the food fixations of eating disorders, but sitiomania centres on genuine foods eaten in compulsive, selective patterns. Modern psychiatry rarely uses the word, preferring precise diagnoses, yet the phenomenon it names is recognisable: the patient who will eat only one food, or who pursues a particular taste with an urgency that disrupts normal eating. It marks the boundary where appetite becomes pathology.