What is the term for craving a nonfood item?

Pica is the medical term for the persistent craving and consumption of nonfood or nonnutritive substances such as dirt (geophagia), clay, ice (pagophagia), laundry starch, chalk, or hair. It is most commonly observed in pregnant women, young children, and individuals with intellectual disabilities or iron-deficiency anemia. The exact cause is not fully understood, but iron or zinc deficiency is frequently implicated, and treating the underlying deficiency sometimes resolves the behavior. The condition can be dangerous because ingested substances may contain heavy metals, pathogens, or cause gastrointestinal obstruction. Preeclampsia is a hypertensive disorder of pregnancy characterized by high blood pressure and proteinuria and is entirely unrelated to food cravings. Famine refers to a widespread, severe shortage of food affecting a population, a socioeconomic and environmental phenomenon rather than an individual craving. Listeriosis is a foodborne bacterial infection caused by Listeria monocytogenes, particularly dangerous for pregnant women, newborns, and immunocompromised individuals, but again has nothing to do with craving nonfood items. Understanding pica is important for nursing assessment, particularly in prenatal and pediatric populations, as it may signal nutritional deficiencies and poses safety risks that require intervention and client education.