On the other hand, there are other theoriesabout the obesity epidemic. As with other issues, we need to be careful not to jump to conclusions.

There's a chart here on childhood obesity. Anything we identify as a cause needs to correspond to this. Here's a chart on HFCS use. Close enough? Or maybe a chart showing video game use would correspond better?

Tell you what. Kill the corn subsidies (ethanol too, while you're at it.) Tar and feather Archer Daniels Midland and run them out of town to earn an honest living. Maybe do the same with the Nutrition Nazis while you have the tar warm. Drop all the government sugar tariffs and protectionism. Then see what market forces can do.