There's something magical that happens when people eat from the same pot. The family meal is really the nursery of democracy. It's where we learn to share; it's where we learn to argue without offending. It's just too critical to let go, as we've been so blithely doing.

In general, science journalism concerns itself with what has been published in a handful of peer-reviewed journals - Nature, Cell, The New England Journal of Medicine - which set the agenda.

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.

We are not only what we eat, but how we eat, too.

Avoid food products that make health claims. at meals and eat them only at tables. And no, a desk is not a table.

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.

There's a schizoid quality to our relationship with animals, in which sentiment and brutality exist side by side. Half the dogs in America will receive Christmas presents this year, yet few of us pause to consider the miserable life of the pig - an animal easily as intelligent as a dog - that becomes the Christmas ham.