Document Detail

A conceptual model of the food and nutrition system.
MedLine Citation:
PMID:  9722106     Owner:  NLM     Status:  MEDLINE    
The food system is a widely used concept, but few systematic frameworks model the full scope and structure of the food and nutrition system. Bibliographic searches, a modified Delphi technique, focus groups and interviews with experts on the topic were conducted to identify existing models of agriculture, food, nutrition, health and environmental systems. These models were examined, classified and synthesized into an integrated conceptual model of the food and nutrition system. Few existing models broadly described the system and most focused on one disciplinary perspective or one segment of the system. Four major types of models were identified: food chains, food cycles, food webs and food contexts. The integrated model developed here included three subsystems (producer, consumer, nutrition) and nine stages (production, processing, distribution, acquisition, preparation, consumption, digestion, transport, metabolism). The integrated model considers the processes and transformations that occur within the system and relationships between the system and other systems in the biophysical and social environments. The integrated conceptual model of the food and nutrition system presents food and nutrition activities as part of a larger context and identifies linkages among the many disciplines that deal with the food and nutrition system.
J Sobal; L K Khan; C Bisogni
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Social science & medicine (1982)     Volume:  47     ISSN:  0277-9536     ISO Abbreviation:  Soc Sci Med     Publication Date:  1998 Oct 
Date Detail:
Created Date:  1998-12-17     Completed Date:  1998-12-17     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8303205     Medline TA:  Soc Sci Med     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  853-63     Citation Subset:  IM    
Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853-4401, USA.
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MeSH Terms
Delphi Technique
Focus Groups
Food Handling
Food Supply
Health Policy
Interviews as Topic
Models, Theoretical*
Nutritional Physiological Phenomena*

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

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