From Worldometer: Of 22 industrialized countries, the U.S. has the highest obesity statistics 2/3 of Americans over age 20 are overweight nearly 1/3 of Americans over age 20 are obese.
I cook food everyday. Eat breakfast at home (usually vegetables, fruit, rice) Pack my lunch in a tupperware and bring to the office. On the way home, I pass by the store, buy some fresh produce, veges, fowl, etc. and cook again when I reach home. I cook more during Sundays. Pizzas and burgers are only for emergencies. My American friends here also love to cook maybe because life's pace here is slower compared to the States and you can really manage time easily.