Russell J de Souza1,2,3, Sonia S Anand4,5,6. 1. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ONL8S 4K1, Canada rdesouz@mcmaster.ca. 2. Department of Nutritional Sciences, University of Toronto, Toronto, ON, Canada. 3. Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, ON, Canada. 4. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ONL8S 4K1, Canada. 5. Department of Medicine, McMaster University, Hamilton, ON, Canada. 6. Population Health Research Institute, Hamilton Health Sciences and McMaster University, Hamilton, ON, Canada.