A big part of the reason why we have an epidemic of obesity is because it's cheaper (and easier) to eat junk food than to eat healthy. Here in the Bay Area, I

A big part of the reason why we have an epidemic of obesity is because it's cheaper (and easier) to eat junk food than to eat healthy. Here in the Bay Area, I can buy a McDonalds value menu hamburger and a soda for $2, or I can buy a healthy salad at SweetGreen/Panera/Mendocino for $15-20. If healthy food was on a level playing field, many people would choose to eat healthier. (Now, this doesn't address the problem about rising food costs, and the macroeconomic implications hare are beyond my expertise... but surely forcing those with a low income to have to eat junk food isn't what we want as a society.)