Can you live off the food that one dollar a day can provide: One Dollar Diet Project?
My frugal Scots heritage makes me want to try such a project. Something tells me I could actually eat rather well, as long as you don't count the cost of energy it takes to prepare food. Fresh produces, of course, is the enemy in such a project, given that fresh fruit and vegetables are out-of-site expensive. A single apple, for example, is well over a dollar now. Eating frozen vegetables seems like cheating, given that you have to expend the energy to keep them frozen.
Rather than taking on the challenge of eating on less than a dollar a day, I think I might calculate how much I spend in food, and then attempt to maximize my food dollar. I know for damn sure that I can eat much more cheaply than I would by paying others to prepare food that I can easily make myself.
A dollar a day, however, would appear to be egregiously tight and near starvation level, of course. Then again, I presume that most of the third world is forced to live on such a diet. They, of course, would have to calculate their energy costs into such a budget. As I said, that's where we get into deep problems--energy is even more expensive for third world people. They have to hunt down non-existent firewood or pay outrageous amounts for portable fuel.
It might do us all some good to try to live the way the most unfortunate of our fellow humans have to live. I don't think, however, I could do it for a month.