Abstract
For the first time since the series began in 1980, the Dietary Guidelines for America 2010 (DGA 2010) call for coordinated efforts from all sectors to improve the U.S. food environment to promote healthful choices that could lead to a decrease in rates of obesity and overweight. This article discusses the rise in numbers of overweight and obese people in the United States and reasons for concern about the increase in average body weight. It presents an overview of scientific literature on the likely causes for the rapid increase in obesity in the past 30 years. Finally, it examines the possible steps that could make the DGA 2010 more effective at managing the national waistline.
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