Most important thing about your diet is who cooks it, a human or a corporation.

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

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.

In addition to contributing to erosion, pollution, food poisoning, and the dead zone, corn requires huge amounts of fossil fuel - it takes a half gallon of fossil fuel to produce a bushel of corn.

Corporations cook very differently from how people do.

...There's a lot of money in the Western diet. The more you process any food, the more profitable it becomes. The healthcare industry makes more money treating chronic diseases (which account for three quarters of the $2 trillion plus we spend each year on health care in this country) than preventing them.

People who snack sometimes sometimes eat kind of thoughtlessly and end up eating a lot more. But in principle, it's a really good idea if you can exert the kind of discipline needed.