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.

Avoid foods you see advertised on television.

That eating should be foremost about bodily health is a relatively new and, I think, destructive idea-destructive not just the pleasure of eating, which would be bad enough, but paradoxically of our health as well. Indeed, no people on earth worry more about the health consequences of their food choices than we Americans-and no people suffer from as many diet-related problems. We are becoming a nation of orthorexics: people with an unhealthy obsession with healthy eating.

We're spending, on average, 27 minutes a day cooking and about four minutes cleaning up, so basically about a half hour. Any one of TV shows takes twice as long to watch as that, which I think is very interesting because the main excuse people give for not cooking is they don't have time to cook, but somehow they're finding time to watch other people cook or eat on TV.

The big journals and Nobel laureates are the equivalent of Congressional leaders in science journalism.

If you're cooking food, you don't have to count calories.

People don't eat nutrients, they eat foods, and foods can behave very differently than the nutrients they contain.