Environmental changes and degradation pose a threat to the integrity of the traditional food system and the health of Aboriginal Peoples in the Circumpolar North. The overall objective for this proposal is to develop a comprehensive food monitoring program and environmental health research program for Aboriginal communities that will integrate information on toxicology of environmental contaminants, food composition and nutrient requirement, food availability and effects of environmental changes, local and traditional ecological knowledge, cultural and socioeconomic factors. Education and communication initiatives are also planned to assist individuals in making their own informed decisions on food choice. The participatory nature of the research will ensure Aboriginal Peoples’ involvement and/or training in all stages of research projects, including the initiation, planning, implementation, and results communications.