geophagia

/ˌdʒiːoʊˈfeɪdʒiə/
noun
  1. The practice of eating earth, soil, or clay, often as part of a cultural tradition or due to a medical condition.
    • The doctor explained that geophagia can sometimes be a sign of a mineral deficiency in the body.
    • In some cultures, geophagia is believed to have health benefits or to help with digestion.
    • Researchers study geophagia in both humans and animals to understand why they eat soil.