MedicalResearch.com Interview with:
Pepita Barlow, MSc, Department of Sociology University of Oxford, Manor Road Building, Manor Road, Oxford, United Kingdom
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: The escalating global prevalence of overweight and obesity, or “globesity,” is often described as a pandemic. Globalization via free trade agreements (FTAs) with the US has been implicated in this pandemic because of its role in spreading high-calorie diets rich in salt, sugar, and fat through the reduction of trade barriers like tariffs in the food and beverage sector.
We used a “natural experiment” design (that mimics a randomized controlled trial as closely as possible) and data from the United Nations Food and Agricultural Office to evaluate the impact of the 1989 Canada-US Free Trade Agreement on caloric availability in Canada (CUSFTA).
We found that CUSFTA was associated with an increase in caloric availability and likely intake of approximately 170 kilocalories per person per day in Canada. Additional models showed that this rise in caloric intake can contribute to weight gain of between 1.8-9.3 kg for men and 2.0-12.2 kg for women aged 40, depending on their physical activity levels and the extent to which availability affects caloric intake. (more…)
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