They dont even take size measurements when they do this. So it's actually theoretical bull****. Article as follows:
The survey looks at 16 different categories, such as how well city residents fare in nutrition, exercise and sports participation, and to what extent they embrace poor health choices, such as smoking, drinking and excessive TV watching.
To figure out each city's fat content, researchers tallied the number of fast food joints per city, checked out the average length of commutes (the longer the ride, the higher the chance of excess fat), examined air and water quality and explored parks and recreational facilities.
full story:
http://abcnews.go.com/sections/GMA/GoodMorningAmerica/GMA0203Americas_fattest_cities.html
The survey looks at 16 different categories, such as how well city residents fare in nutrition, exercise and sports participation, and to what extent they embrace poor health choices, such as smoking, drinking and excessive TV watching.
To figure out each city's fat content, researchers tallied the number of fast food joints per city, checked out the average length of commutes (the longer the ride, the higher the chance of excess fat), examined air and water quality and explored parks and recreational facilities.
full story:
http://abcnews.go.com/sections/GMA/GoodMorningAmerica/GMA0203Americas_fattest_cities.html