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Provedor de dados:  Organic Eprints
País:  Germany
Título:  Composition differences between organic and conventional meat: a systematic literature review and meta-analysis
Autores:  Srednicka-Tober, Dominika
Baranski, Marcin
Seal, Chris
Sanderson, Roy
Benbrook, Charles
Steinshamn, Håvard
Gromadzka-Ostrowska, Joanna
Rembialkowska, Ewa
Skwarło-Sonta, Krystyna
Eyre, Mick
Cozzi, Giulio
Krogh Larsen, Mette
Jordon, Teresa
Niggli, Urs
Sakowski, Tomasz
Calder, Philip C.
Burdge, Graham C.
Sotiraki, Smaragda
Stefanakis, Alexandros
Yolcu, Halil
Stergiadis, Sokratis
Chatzidimitriou, Eleni
Butler, Gillian
Stewart, Gavin
Leifert, Carlo
Data:  2016
Ano:  2016
Palavras-chave:  Production systems Systems research and participatory research Processing
Packaging and transportation Consumer issues
Resumo:  Demand for organic meat is partially driven by consumer perceptions that organic foods are more nutritious than non-organic foods. However, there have been no systematic reviews comparing specifically the nutrient content of organic and conventionally produced meat. In this study, we report results of a meta-analysis based on sixty-seven published studies comparing the composition of organic and non-organic meat products. For many nutritionally relevant compounds (e.g. minerals, antioxidants and most individual fatty acids (FA)), the evidence base was too weak for meaningful meta-analyses. However, significant differences in FA profiles were detected when data from all livestock species were pooled. Concentrations of SFA and MUFA were similar or slightly lower, respectively, in organic compared with conventional meat. Larger differences were detected for total PUFA and n-3 PUFA, which were an estimated 23 (95 % CI 11, 35) % and 47 (95 % CI 10, 84) % higher in organic meat, respectively. However, for these and many other composition parameters, for which meta-analyses found significant differences, heterogeneity was high, and this could be explained by differences between animal species/meat types. Evidence from controlled experimental studies indicates that the high grazing/forage-based diets prescribed under organic farming standards may be the main reason for differences in FA profiles. Further studies are required to enable meta-analyses for a wider range of parameters (e.g. antioxidant, vitamin and mineral concentrations) and to improve both precision and consistency of results for FA profiles for all species. Potential impacts of composition differences on human health are discussed.
Tipo:  Journal paper
Idioma:  Inglês

Srednicka-Tober, Dominika; Baranski, Marcin; Seal, Chris; Sanderson, Roy; Benbrook, Charles; Steinshamn, Håvard; Gromadzka-Ostrowska, Joanna; Rembialkowska, Ewa; Skwarło-Sonta, Krystyna; Eyre, Mick; Cozzi, Giulio; Krogh Larsen, Mette; Jordon, Teresa; Niggli, Urs; Sakowski, Tomasz; Calder, Philip C.; Burdge, Graham C.; Sotiraki, Smaragda; Stefanakis, Alexandros; Yolcu, Halil; Stergiadis, Sokratis; Chatzidimitriou, Eleni; Butler, Gillian; Stewart, Gavin and Leifert, Carlo (2016) Composition differences between organic and conventional meat: a systematic literature review and meta-analysis. British Journal of Nutrition, 115 (6), pp. 994-1011.
Formato:  application/pdf
Direitos:  cc_by

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