The University of Arizona

Investigating Intra-Individual Dietary Changes and 14C Ages Using High-Resolution δ13C and δ15N Isotope Ratios and 14C Ages Obtained from Dentine Increments

Laura G van der Sluis, Paula J Reimer, Niels Lynnerup


Ten medieval permanent teeth were subjected to incremental dentine sectioning and stable isotope analysis to investigate dietary changes in high resolution. In addition to this, eight increments were also selected for radiocarbon measurements to examine possible intra-individual age differences. Results reveal the cessation of weaning, various dietary profiles, and in some cases significantly different 14C ages obtained from a single tooth. This case study illustrates how 14C measurements can function as a proxy alongside the commonly used carbon and nitrogen stable isotope values to interpret the diet of past individuals.

DOI: 10.2458/azu_rc.57.18338


Stable isotopes; incremental dentine; radiocarbon ages; childhood diet; Denmark.

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