The correlation between poverty and obesity can be traced to agricultural policies and subsidies.

We spend a remarkably small, shamefully small, percentage of our income on food. We manage to spend money on lots of other things. All up and down the social ladder you find people with plenty of money for cell phones, home entertainment systems, all other forms of entertainment.

One surprise is how deeply the food system is implicated in climate change. I don't think that has really been on people's radar until very recently. 25 to 33 percent of climate change gases can be traced to the food system. I was also surprised that those diseases that we take for granted as what will kill us - heart disease, cancer, diabetes - were virtually unknown 150 years ago, before we began eating this way.

There's no sacrifice in eating well, there is no sacrifice in pleasure. To the contrary, the best-grown food is actually the tastiest.

Those externalized costs have always included labor. It is only the decline over time of the minimum wage in real dollars that's made the fast food industry possible, along with feedlot agriculture, pharmaceuticals on the farm, pesticides and regulatory forbearance. All these things are part of the answer to the question: Why is that crap so cheap? Our food is dishonestly priced. One of the ways in which it's dishonestly priced is the fact that people are not paid a living wage to process it, to serve it, to grow it, to slaughter it.

I'm not talking about having to consult Julia Child before you can take a pot off the rack. I think that's something we can all do more and do better.

If it came from a plant, eat it; if it was made in a plant, don't.