Interesting topic bro. My thoughts:
I take a Bloomberg type approach. Look at harmful products like cigarettes. Cigarettes are taxed heavily and laws on smoking have stregnthened and tightened over the years. Now, the number of smokers compared to just 20 years ago has dramatically decreased. People look down on smoking, and society should look down at obesity.
Fast food chains are becoming more and more prevalent, and unhealthy eating is a way of life now for many consumers. I like Bloomberg approach. I think setting food restrictions is the first step this country needs to implement to reverse the obesity trend.