It's about the half way mark of the Penny-Wise Eat Local Challenge, where participants limit themselves to eating local on the budget of an average American. The idea is to counter claims that eating local is too expensive. For one person, that means spending $68 on food for a week. Here's a list of participants, there are more than fifty people taking part and writing about their experiences.
Related: The governor of Oregon is living off a food stamp budget for a week. If you think $68 as your weekly grocery budget isn't much, imagine $21 for a week. That's what one person gets in food stamps for a week in Oregon. The governor isn't eating local though. One article I read said he was pretty much forced to buy junk food.