Geophagy is the intentional ingestion of earth, soil or clay and is a form a pica. This practice is not uncommon in the southern United States or in Africa, and may be seen in pregnant or iron deficient patients 3. Geophagia may be seen in the context of normal cultural or religious practices, and also in patients with psychiatric disease 4.
- 1. Miao D, Young SL, Golden CD. A meta-analysis of pica and micronutrient status. Am. J. Hum. Biol. 2014; . doi:10.1002/ajhb.22598 - Pubmed citation
- 2. Ward P1, Kutner NG, Reported pica behavior in a sample of incident dialysis patients.J Ren Nutr. 1999 Jan;9(1):14-20.
- 3. Woywodt A, Kiss A. Geophagia: the history of earth-eating. J R Soc Med. 2002;95 (3): 143-6. Free text at pubmed - Pubmed citation
- 4. Consuming the Inedible: Neglected Dimensions of Food Choice. Berghahn Books. ISBN:184545684X. Read it at Google Books - Find it at Amazon