Silica in the soil that has been eaten by a woman shows up as white on this plain X-ray<unk>  (), also known as geophagy (), is the intentional practice of eating earth or soil-like substances such as clay, chalk, or termite mounds. It occurs in many non-human animals and has been documented in more than 100 primate species. Geophagy also occurs in humans and is most commonly reported among children and pregnant women. Human<unk>  is a form of pica – the craving and purposive consumption of non-food items – and is classified as an eating disorder in the Diagnostic and Statistical Manual of Mental Disorders (DSM) if not socially or culturally appropriate. Although its etiology remains unknown, geophagy has many potential adaptive health benefits as well as negative consequences.
Geophagia
Aerophagia
Dermatophagia
Trichophagia
Geographic tongue
Burning mouth syndrome
Oral allergy syndrome
Pagophagia