The thesis project aims to study the Iron Age population of Öland based on the graves, in order to highlight the structure and dynamics of the society. Öland had an extensive flow of goods and people during the Iron Age and has varied and rich archaeological sources. The material is both large and well dated to sub-periods of the Iron Age and covers the entire period 500 BC-1050. Based on isotope tests on bones and teeth, I discuss variations in migration and diet in comparison with, among other things, health and disease, traces of violence, body length, gender and age of death as studied osteologically in the skeleton. I also compare these results with the archaeological aspects of the graves (grave shape, finds, etc.) to get a multifaceted picture of social structure and identity at both the individual and community level. Since the different results reflect different specific periods in an individual's life, they are interpreted in relation to the life cycle as well, something that is rarely fully taken into account in the interpretation of isotope analyses. A similar study, which integrates the isotope results in an osteological and archaeological context in this way, has never before been done in Scandinavia. The study takes advantage of the exceptionally rich burial material from Öland in a broad and interdisciplinary way and contributes to broadening the perspective on Iron Age society while developing the field of bioarchaeology.