Pica is a feeding disorder in which someone eats non-food substances that have no nutritional value, such as paper, soap, paint, chalk, or ice. For a diagnosis of pica, the behaviour must be present for at least one month, not part of a cultural practice, and developmentally inappropriate – generally, it’s not diagnosed in children under the age of two, as it is common for babies to “mouth” objects, which can lead to them accidentally eating substances that aren’t meant to be eaten. Often, pica is not revealed until medical consequences occur, such as metal toxicity, cracked teeth, or infections.