What does geophagy mean?
Geophagy is the practice or condition of eating earth, soil, clay, or other geological material. In medical and psychological settings, it is most often discussed as a form of pica, an eating disorder in which people consume substances with little or no nutritional value. Geophagy can be associated with pregnancy, nutritional deficiencies, developmental conditions, obsessive-compulsive disorder, and other health problems, although its causes vary and it should not be reduced to any single explanation. The word can also refer to the deliberate eating of earth in cultural, ritual, or survival contexts, where it may carry social or ceremonial significance rather than being understood as a disorder. Geophagy is therefore a precise, largely technical term useful whenever the material being eaten consists of earth or soil. It is more specific than the general term pica, and it distinguishes a particular substance and behavior from the broader category of eating non-food items.
nounGeophagy is the eating of earth, soil, clay, or other geological material. It may occur as a symptom of pica, as a culturally or ritually practiced behavior, or in circumstances where non-food substances are consumed for reasons other than ordinary appetite.
- The eating of earth, soil, clay, or similar non-food material, especially as a symptom of pica or a nutritional or psychiatric condition.
- The deliberate consumption of earth or soil as a cultural, ritual, ceremonial, or survival practice.
"The clinician investigated the patient's geophagy as a possible manifestation of pica."
"Her pregnancy was complicated by geophagy, which led the medical team to test for iron deficiency and other nutritional problems."
"The anthropological study examined geophagy as a traditional practice carried out in particular communities rather than as a medical disorder."
Rare; geophagy is normally used as an uncountable noun. The plural appears when separate practices or cases are being counted.
"The comparative study examined geophagies found in communities across the region."
Eating dirt is not merely odd: geophagy is a recognized form of pica and has also appeared in ritual, cultural, and survival practices around the world.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does geophagy come from?
Geophagy comes from Greek roots meaning “earth” and “eating,” and entered English through scholarly and medical usage in the 19th century. The form reflects the broader English use of combining elements such as geo- for earth and -phagy for eating, as in geography and biology-related terms such as ichthyophagy. The word was initially used in medical descriptions of clay and earth consumption, while later writers also applied it to cultural and ritual practices.
Related word forms
How geophagy is actually used
Geophagy is primarily a technical term used in medicine, psychology, anthropology, and nutrition. In clinical contexts it often has a negative or pathological connotation, while cultural and historical accounts may describe ritual or survival practices without implying abnormality. It should not be used as a general synonym for eating any unusual substance.
Easily confused with geophagy
Pica is an eating disorder involving persistent consumption of substances with little or no nutritional value, whereas geophagy specifically names the eating of earth, soil, or clay.