View source for Zeism

'''Zeism''' is any condition attributed to excessive use of [[maize]] (corn) in the diet, such as [[pellagra]], because maize is low in [[zinc]], [[niacin]] and [[tryptophan]], and the limited niacin found in maize is not assimilated in the intestinal tract unless it has been treated with [[alkalis]], as in the preparation of [[tortillas]].  A type of pellagra attributed to amino acid imbalance is common in [[India]] among persons who eat a [[millet]] with a high [[leucine]] content.  The deficiencies are usually seasonal.

==See also==
*[[Avitaminosis]]

==Primary sources==
*[[Dorland's Illustrated Medical Dictionary]]
*[http://www.merck.com/mmhe/sec12/ch154/ch154h.html The Merck Manuals Online Medical Library - Niacin Deficiency]
*[http://health.enotes.com/neurological-disorders-encyclopedia/vitamin-nutritional-deficiency  Encyclopedia of Neurological Disorders: Vitamin/Nutritional Deficiency]

==Secondary Sources==
*Wilson, Jean D. ''"Deficiency States."'' In Harrison's Principles of Internal Medicine, ed. Anthony S. Fauci, et al. New York: McGraw-Hill, 1997.
*Garrison, Robert H., Jr. and Elizabeth Somer. ''The Nutrition Desk Reference.'' Keats Publising, Inc., 1985.
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[[Category:Disease]]