The Economist chimes in with an article about fat America. Glad a fall into the category that I do.

The final paragraph sums it all up.

Americans have got larger because they have chosen (mainly consciously) to eat the way that they do. Millions of them actually eat rather well: these tend to be the richer and better-educated sorts, who go to gyms and buy their vegetables from organic farmers' markets. Their buying power is having an effect: one of the fastest-growing supermarket chains in America is Whole Foods Markets, based in Austin, Texas, which mixes organic vegetables and free-range chicken with a sorcerer's array of vitamin tonics. But, for the moment at least, they are in a clear thin minority.