Geophagy
Geophagy
Geophagy (pronounced: jee-off-uh-jee) is the practice of eating earth or soil-like substances such as clay and chalk. It is a form of pica, a psychological disorder characterized by an appetite for substances that are largely non-nutritive.
Etymology
The term "geophagy" comes from the Greek words geo meaning "earth" and phagein meaning "to eat".
Overview
Geophagy is observed in many animals, and has been practiced by human cultures since prehistoric times. In humans, it is most often seen in pregnant women and children in developing countries where the diet is low in bioavailable iron. It is also practiced in some cultures for spiritual or religious reasons.
Health Implications
While geophagy can provide certain nutrients, it can also lead to health problems such as intestinal obstruction and toxicity due to the ingestion of harmful substances present in the soil.
Related Terms
- Pica: A psychological disorder characterized by an appetite for substances that are largely non-nutritive.
- Clay eating: A specific form of geophagy where the substance consumed is clay.
- Chalk eating: A specific form of geophagy where the substance consumed is chalk.
- Iron deficiency: A common nutritional disorder that can lead to geophagy.
- Toxicity: The degree to which a substance can harm humans or animals.
External links
- Medical encyclopedia article on Geophagy
- Wikipedia's article - Geophagy
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