Geophagy
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 The red-and-green macaw eats clay from exposed riverbanks, allowing it to utilize nutrients in harmful foods. |
Geophagy is the practice of eating earthy or soil-like substances such as clay, and chalk. It exists in animals in the wild and also in humans, most often in rural or preindustrial societies among children and pregnant women. Human geophagy may be related to pica, a classified eating disorder in the DSM-IV characterized by abnormal cravings for nonfood items.
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| Dirt as Food Dirt as Food www.uic.edu/classes/osci/osci590/8_2DirtasFood.htm - Web |
| Eating Dirt Eating Dirt geography.about.com/cs/culturalgeography/a/geophagy.htm - Web |
| Diamond on Geophagy Diamond on Geophagy cogweb.ucla.edu/Abstracts/Diamond_99.html - Web |
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| CDC on eating dirt CDC on eating dirt www.cdc.gov/ncidod/eid/vol9no8/03-0033.htm - Web |
| Health A to Z - Pica Health A to Z - Pica www.healthatoz.com/.../pica.jsp - Web |
