One of the powerful things about the food issue is that people feel empowered by it. There are so many areas of our life where we feel powerless to change things, but your eating issues are really primal. You decide every day what you're going to put in your body and what you refuse to put in your body. That's politics at its most basic.

The wonderful thing about food is you get three votes a day. Every one of them has the potential to change the world.

In Joel's view, that reformation begins with people going o the trouble and expense of buying directly from farmers they know - "relationship marketing," as he calls it. He believes the only meaningful guarantee of integrity is when buyers and sellers can look one another in the eye, something few of us ever take the trouble to do. "Don't you find it odd that people will put more work into choosing their mechanic or house contractor than they will into choosing the person who grows their food?"

Instead of eating exclusively from the sun, humanity now began to sip petroleum.

Be the kind of person who takes supplements - then skip the supplements.

In 2008, a year of supposed 'food crisis', we grew enough food to feed 11 billion people. Most of it was not eaten by humans as food, however.

I'm very hopeful that we'll see some change in our food system. I don't know how far we'll go, or how quickly we'll get there, but there is no question that a significant percentage of the American public is dissatisfied with the food system.