Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.

Although the globalization of food production is often assumed to result in a homogenization of consumption patterns with a convergence towards a Western style diet, the resources used to make global food products may still be locally produced (glocalization). Stable isotope ratios of human hair can...

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Autores principales:	Luciano O Valenzuela, Lesley A Chesson, Gabriel J Bowen, Thure E Cerling, James R Ehleringer
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/29ee9bde23704527bc9b711ab481b7ff
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spelling	oai:doaj.org-article:29ee9bde23704527bc9b711ab481b7ff2021-11-18T07:23:35ZDietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.1932-620310.1371/journal.pone.0034234https://doaj.org/article/29ee9bde23704527bc9b711ab481b7ff2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22479574/?tool=EBIhttps://doaj.org/toc/1932-6203Although the globalization of food production is often assumed to result in a homogenization of consumption patterns with a convergence towards a Western style diet, the resources used to make global food products may still be locally produced (glocalization). Stable isotope ratios of human hair can quantify the extent to which residents of industrialized nations have converged on a standardized diet or whether there is persistent heterogeneity and glocalization among countries as a result of different dietary patterns and the use of local food products. Here we report isotopic differences among carbon, nitrogen and sulfur isotope ratios of human hair collected in thirteen Western European countries and in the USA. European hair samples had significantly lower δ(13)C values (-22.7 to -18.3‰), and significantly higher δ(15)N (7.8 to 10.3‰) and δ(34)S (4.8 to 8.3‰) values than samples from the USA (δ(13)C: -21.9 to -15.0‰, δ(15)N: 6.7 to 9.9‰, δ(34)S: -1.2 to 9.9‰). Within Europe, we detected differences in hair δ(13)C and δ(34)S values among countries and covariation of isotope ratios with latitude and longitude. This geographic structuring of isotopic data suggests heterogeneity in the food resources used by citizens of industrialized nations and supports the presence of different dietary patterns within Western Europe despite globalization trends. Here we showed the potential of stable isotope analysis as a population-wide tool for dietary screening, particularly as a complement of dietary surveys, that can provide additional information on assimilated macronutrients and independent verification of data obtained by those self-reporting instruments.Luciano O ValenzuelaLesley A ChessonGabriel J BowenThure E CerlingJames R EhleringerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 3, p e34234 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Luciano O Valenzuela Lesley A Chesson Gabriel J Bowen Thure E Cerling James R Ehleringer Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
description	Although the globalization of food production is often assumed to result in a homogenization of consumption patterns with a convergence towards a Western style diet, the resources used to make global food products may still be locally produced (glocalization). Stable isotope ratios of human hair can quantify the extent to which residents of industrialized nations have converged on a standardized diet or whether there is persistent heterogeneity and glocalization among countries as a result of different dietary patterns and the use of local food products. Here we report isotopic differences among carbon, nitrogen and sulfur isotope ratios of human hair collected in thirteen Western European countries and in the USA. European hair samples had significantly lower δ(13)C values (-22.7 to -18.3‰), and significantly higher δ(15)N (7.8 to 10.3‰) and δ(34)S (4.8 to 8.3‰) values than samples from the USA (δ(13)C: -21.9 to -15.0‰, δ(15)N: 6.7 to 9.9‰, δ(34)S: -1.2 to 9.9‰). Within Europe, we detected differences in hair δ(13)C and δ(34)S values among countries and covariation of isotope ratios with latitude and longitude. This geographic structuring of isotopic data suggests heterogeneity in the food resources used by citizens of industrialized nations and supports the presence of different dietary patterns within Western Europe despite globalization trends. Here we showed the potential of stable isotope analysis as a population-wide tool for dietary screening, particularly as a complement of dietary surveys, that can provide additional information on assimilated macronutrients and independent verification of data obtained by those self-reporting instruments.
format	article
author	Luciano O Valenzuela Lesley A Chesson Gabriel J Bowen Thure E Cerling James R Ehleringer
author_facet	Luciano O Valenzuela Lesley A Chesson Gabriel J Bowen Thure E Cerling James R Ehleringer
author_sort	Luciano O Valenzuela
title	Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
title_short	Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
title_full	Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
title_fullStr	Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
title_full_unstemmed	Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.
title_sort	dietary heterogeneity among western industrialized countries reflected in the stable isotope ratios of human hair.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/29ee9bde23704527bc9b711ab481b7ff
work_keys_str_mv	AT lucianoovalenzuela dietaryheterogeneityamongwesternindustrializedcountriesreflectedinthestableisotoperatiosofhumanhair AT lesleyachesson dietaryheterogeneityamongwesternindustrializedcountriesreflectedinthestableisotoperatiosofhumanhair AT gabrieljbowen dietaryheterogeneityamongwesternindustrializedcountriesreflectedinthestableisotoperatiosofhumanhair AT thureecerling dietaryheterogeneityamongwesternindustrializedcountriesreflectedinthestableisotoperatiosofhumanhair AT jamesrehleringer dietaryheterogeneityamongwesternindustrializedcountriesreflectedinthestableisotoperatiosofhumanhair
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Dietary heterogeneity among Western industrialized countries reflected in the stable isotope ratios of human hair.

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