Document Detail

Effect of cysteine on iron absorption in man.
MedLine Citation:
PMID:  7211733     Owner:  NLM     Status:  MEDLINE    
Cysteine significantly increases, about 2-fold, the absorption from nonheme iron present in vegetable foods, hemosiderin, and of a ferric salt, when this amino acid is administered during the ingestion of foods. No enhancing effect was obtained when the amino acid was mixed with the food before the final cooking. A slight but significant enhancement of heme iron absorption was observed when a large dose of cysteine was administered during the ingestion of hemoglobin. This amino acid mimics the enhancing effect from proteins present in animal foods such as beef, lamb, pork, fish, chicken, and liver. It could be possible that proteins and cysteine share the same mechanism by which they induce an increase of iron absorption.
C Martínez-Torres; E Romano; M Layrisse
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  34     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  1981 Mar 
Date Detail:
Created Date:  1981-05-26     Completed Date:  1981-05-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  322-7     Citation Subset:  AIM; IM    
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MeSH Terms
Cysteine / pharmacology*
Dietary Proteins / pharmacology
Ferric Compounds / metabolism
Ferrous Compounds / metabolism
Food, Fortified
Hemoglobins / metabolism
Hemosiderin / metabolism
Iron / metabolism*
Plants, Medicinal
Zea mays
Reg. No./Substance:
0/Dietary Proteins; 0/Ferric Compounds; 0/Ferrous Compounds; 0/Hemoglobins; 52-90-4/Cysteine; 7439-89-6/Iron; 7705-08-0/ferric chloride; 7720-78-7/ferrous sulfate; 9011-92-1/Hemosiderin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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