Culture, when it comes to food, is of course a fancy word for your mom.

All the arguments about nutrition are really about what is the problem ingredient in the western diet. Is it the fat? Is it the lack of fiber? Is it the refined carbohydrates?But we don't have to worry about it. We just have to try to get off that diet to the extent we can.

Don't eat breakfast cereals that change the color of your milk.

I work very hard on finding good characters who can explain things to me, and I use them to help tell the story. I organize my pieces not just around people but around animals and plants, energy flows, the path that carbon takes through the food system.

There are fundamental tensions between the biological reality of the planet and the economic reality. To some extent you can adapt the economy, create a new set of rules and incentives to send it down a better track, but finally people in the first world are going to have to consume a whole lot less.

It's estimated that about 30 percent of the increase in grain prices could be attributed to the decision to embrace biofuels, particularly corn-based ethanol. It has done nothing for climate change and the business is in real trouble now with the collapse of oil prices. It's completely dependent on a dollar subsidy and tariff from the government.

Corporations cook very differently from how people do.