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Prediction Of Human Dietary Δ15N Intake From Standardized Food Records: Validity And Precision Of Single Meal And 24-H Diet Data, Frank Hülsemann, Karsten Koehler, Jürgen Wittsiepe, Michael Wilhelm, Annett Hilbig, Mathilde Kersting, Hans Braun, Ulrich Flenker, Wilhelm Schänzer
Prediction Of Human Dietary Δ15N Intake From Standardized Food Records: Validity And Precision Of Single Meal And 24-H Diet Data, Frank Hülsemann, Karsten Koehler, Jürgen Wittsiepe, Michael Wilhelm, Annett Hilbig, Mathilde Kersting, Hans Braun, Ulrich Flenker, Wilhelm Schänzer
Department of Nutrition and Health Sciences: Faculty Publications
Natural stable isotope ratios (δ15N) of humans can be used for nutritional analyses and dietary reconstruction of modern and historic individuals and populations. Information about an individual’s metabolic state can be obtained by comparison of tissue and dietary δ15N. Different methods have been used to estimate dietary δ15N in the past; however, the validity of such predictions has not been compared to experimental values. For a total of 56 meals and 21 samples of 24-h diets, predicted and experimental δ15N values were compared. The δ15N values were predicted from self-recorded food intake …