Traditional diets were known to be free from chemical contaminants and Genetically Modified Organisms (GMO). Since,they are promising in augmenting food security, traditional dietswereadopted indicator of food security from Indigenousperspective.This study used 126 participants from three Indigenous communities of western Canada: (i) Côte, (ii) Keeseekooseand (iii) Alexis Nakota. The aims of this investigation were to: (i) evaluate possible threats to traditional diets (ii) document thecurrent state of food insecurity using traditional diets as indicator of food security (iii) identify the potentials of traditional dietsin achieving food security. The three year study used two different methodologies: (i) interviews and (ii) Focus Group Discussion(FGD) in achieving the aims of the study. The results of the study showed that the Indigenous people have tremendouslybenefited from traditional diets. The degree of access to traditional diets have been impacted by chemical contaminantssprayed by mechanized farmers in Indigenous territories. To advance this work, this paper suggests that more work is neededto understand the perceptions of the mechanized farmers in Indigenous territories of western Canada. The implication of thisstudy is that significant consequences of lack of access to traditional food are threat to food security and Indigenous identity.