Comportements alimentaires au Moyen Âge à Grenoble : application de la biogéochimie isotopique à la nécropole Saint-Laurent (XIIIe–XVe siècles, Isère, France)

Isotopic analysis of ¹³C and ¹⁵N of 47 bones from Saint-Laurent de Grenoble cemetery (Grenoble, Isère), from the end of medieval period (XIIIth–XVth centuries AD) allowed to define the food status of animals with regard to the humans and to discuss the variability amongst adults. Adults who died young and those with small stature may have had diets poor in animal protein. The consumption of animal proteins was more important in the XVth than in the XIVth century and could illustrate a typical urban food economy providing its population with a more diversified diet than in rural areas.