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Stable isotope ratios of nitrogen and carbon as biomarkers of a vegan diet

Zugehörigkeit
Department of Clinical Medicine, Centre for Nutrition, Mohn Nutrition Research Laboratory, University of Bergen, Haukelandsbakken 15, Bergen, Norway
Dierkes, Jutta;
Zugehörigkeit
Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany
Dietrich, Stefan;
Zugehörigkeit
Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany
Abraham, Klaus;
Zugehörigkeit
Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany
Monien, Bernhard H.;
Zugehörigkeit
Bevital AS, Bergen, Norway
McCann, Adrian;
Zugehörigkeit
Department of Biosciences, University of Oslo, Oslo, Norway
Borgå, Katrine;
Zugehörigkeit
Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany
Weikert, Cornelia

Dietary biomarkers can potentially overcome the limitations of self-reported dietary data. While in ecology and archaeology, stable isotope ratios of carbon and nitrogen are widely used as biomarkers, this is not the case in nutrition research. Since the abundance of the 13C and the 15N isotope differ in food sources from plant and animal origin, stable isotope ratios of carbon and nitrogen (δ13C and δ15N) may differ in human biological material. Here, we investigated the stable isotope ratios of nitrogen and carbon in serum and urine from vegans and omnivores.

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