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Is a diet low in greenhouse gas emissions a nutritious diet?: - Analyses of self-selected diets in the LifeGene study
Mälardalen University, School of Health, Care and Social Welfare, Health and Welfare. Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet, Stockholm, Sweden.
Stanford School of Medicine, USA.
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2017 (English)In: Archives of Public Health, ISSN 0778-7367, E-ISSN 2049-3258, Vol. 75, no 1, 17Article in journal (Refereed) Published
Abstract [en]

Background: Climate change is an urgent global issue and the food sector is a major contributor to greenhouse gas emissions (GHGE). Here we study if a diet low in GHGE could be a nutritious diet compared to the Nordic Nutrition Recommendations (NNR). Methods: The environmental impact of foods from Life Cycle Assessment (LCA) data was linked to a food frequency questionnaire (FFQ) filled out by 5,364 participants in the Swedish LifeGene study. Thereafter, we calculated the daily emission of CO2 equivalents (CO2e) as well as the intake of selected nutrients associated with vegetables, fruits, meat and dairy products. The CO2e was divided into quartiles were quartile 1 corresponds to a diet generating the lowest CO2e, and quartile 4 corresponds to a diet with the highest CO2e. Results: The overall diet-related emission was 4.7kg CO2e/day and person, corresponding to 1.7 ton CO2e/year. In general, there were only small differences in nutrient intake between groups of varying levels of CO2e, regardless if the intake was analyzed as absolute intake, energy percent or as nutrient density. Moreover, adherence to NNR was high for the group with the lowest CO2e, except for saturated fat where the intake was higher than recommended for all CO2e groups. On the other hand, only the group with the lowest CO2e fulfilled recommended intake of fiber. However, none of the CO2e groups reached the recommended intake of folate and vitamin D. Conclusions: Here we show that a self-selected diet low in CO2e provides comparable intake of nutrients as a diet high in in CO2e. 

Place, publisher, year, edition, pages
BioMed Central Ltd. , 2017. Vol. 75, no 1, 17
Keyword [en]
Carbon dioxide equivalents, Diet, Greenhouse gas emission, Life cycle assessment, LifeGene study, Nordic Nutrition Recommendations, Nutrients
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:mdh:diva-35340DOI: 10.1186/s13690-017-0185-9ISI: 000398613700001ScopusID: 2-s2.0-85018528864OAI: oai:DiVA.org:mdh-35340DiVA: diva2:1096830
Available from: 2017-05-19 Created: 2017-05-19 Last updated: 2017-05-19Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
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More styles
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