This collection contains IATPs work on the connection between trade and obesity. The effects of trade liberalization (so-called free trade agreements like NAFTA) on the economy, jobs, the environment and even food security have all been studied closely, but as more and more governments start to confront the large and growing costs of poor diets on human health, new questions are emerging about the relationship between free trade agreements and the growing global obesity epidemic. This paper examines the role of the North American Free Trade Agreement (NAFTA) in the development of an unhealthy food environment in Mexico by increasing the availability of processed foods and meat products derived from cheap commodity grains imported from the U.S. and elsewhere.