Societies that foster high quality social environments and integration produce healthier populations. The mechanisms underlying the protective effect of social integration appear to be through various forms of social support. In the Canadian Aboriginal context, few authors have explored the relationship between health and social support. This gap in understanding is significant because Aboriginal frameworks of health point to the salience of larger social structures (i.e., family), yet patterns of population health point to distinctly social causes of morbidity and mortality (e.g., violence, alcoholism). An interesting paradox emerges: patterns of Aboriginal health suggest that social support is not working to promote health. This dissertation explores this paradox through a mixed-methods approach to describe the value of social support for Aboriginal health, and to critically examine the social-structural processes and mechanisms through which social support influences Aboriginal health at the community level. / Principal components analyses of the 2001 Aboriginal Peoples Survey (APS) identified social support as a consistent dimension of Metis and Inuit health, and multivariable logistic regression modelling of the 2001 APS identified social support to be a significant determinant of thriving health among Indigenous men and women (e.g., those reporting their health as excellent/very good versus good/fair/poor). The results also indicate a distinct social gradient in thriving health status and social support among Aboriginal Canadians. / Narrative analyses of 26 interviews with Aboriginal Community Health Representatives point to two key explanations for the health-support paradox: (i) social support is not a widely accessible resource; and (ii) the negative health effects of social support can outweigh the positive ones. The formation of health behaviours and cultural norms - which underpin social supports - are inextricably tied to the poor material circumstances that characterize Canada's Aboriginal communities. The thesis concludes with a critical examination of the processes through which environmental dispossession has influenced the determinants of Aboriginal health, broadly speaking. Effects are most acute within the material and social environments of Aboriginal communities. More research attention should focus on identifying the pathways through which the physical, material and social environments interact to influence the health of Aboriginal Canadians.

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