Now that I know how supermarket meat is made, I regard eating it as a somewhat risky proposition. I know how those animals live and what's on their hides when they go to slaughter, so I don't buy industrial meat.

There are things we know and things we don't know about food. But there are certain basic things we do know, and that's what I've tried to build these rules on.

While it is true that many people simply can't afford to pay more for food, either in money or time or both, many more of us can. After all, just in the last decade or two we've somehow found the time in the day to spend several hours on the internet and the money in the budget not only to pay for broadband service, but to cover a second phone bill and a new monthly bill for television, formerly free. For the majority of Americans, spending more for better food is less a matter of ability than priority. p.187

Rule No. 12: shop the peripheries of the supermarket and stay out of the middle.

A garden should make you feel you've entered privileged space -- a place not just set apart but reverberant -- and it seems to me that, to achieve this, the gardener must put some kind of twist on the existing landscape, turn its prose into something nearer poetry.

Do all your eating at a table.

Wrangham cites several studies indicating that in fact humans don't do well on raw food: they can't maintain their body weight, and half of the women on a raw-food regimen stop menstruating. Devotees of raw food rely heavily on juicers and blenders, because otherwise they would have to spend as much time chewing as the chimps do. It is difficult, if not impossible, to extract sufficient energy from unprocessed plant matter to power a body with such a big, hungry brain.