His research is focused on the health and well-being of children, particularly obesity among Aboriginal children and youth. Dr. Wilk is currently conducting a number of studies on child-, family- and neighbourhood-level determinants of childhood obesity and is the Academic co-Lead of the Healthy Weights Connection, a PHAC-funded intervention to improve service delivery to First Nations and Métis children and families. He is also the Academic co-Director of the Statistics Canada Research Data Centre at Western University.