Canada-US Free Trade Agreement (CUSFTA) Increased Caloric Intake in Canada (IMAGE) Elsevier Caption These are trends in calorie availability in Canada and synthetic controls, 1978-2006. Data from the United Nations Food and Agricultural Office (2016). 'Synthetic controls' are constructed from a weighted combination of OECD countries, where weights correspond to the similarity of each country with Canada before CUSFTA. Credit <i>American Journal of Preventive Medicine</i> Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.