If we address frankly what is evoked by cheese, I think it becomes clear why so little is said. So what does cheese evoke? Damp dark cellars, molds, mildews and mushrooms galore, dirty laundry and high school locker rooms, digestive processes and visceral fermentations, he-goats which do not remind of Chanel ... In sum, cheese reminds of dubious, even unsavory places, both in nature and in our own organisms. And yet we love it.

Without the potatoe, the balance of European power might never have tilted north

Food is not just fuel. Food is about family, food is about community, food is about identity. And we nourish all those things when we eat well.

I've always been interested in plants because I'm a gardener, so I have a basic understanding of botany and things like that, but it's all self-taught.

One of the problems is that the US government supports unhealthy food and does very little to support healthy food. I mean, we subsidize high fructose corn syrup. We subsidize hydrogenated corn oil. We do not subsidize organic food. We subsidize four crops that are the building blocks of fast food. And you also have to work on access. We have food deserts in our cities. We know that the distance you live from a supplier of fresh produce is one of the best predictors of your health.

The growth of the American food industry will always bump up against this troublesome biological fact: Try as we might, each of us can only eat about fifteen hundred pounds of food a year. Unlike many other products - CDs, say, or shoes - there's a natural limit to how much food we each can consume without exploding. What this means for the food industry is that its natural rate of growth is somewhere around 1 percent per year - 1 percent being the annual growth rate of American population. The problem is that [the industry] won't tolerate such an anemic rate of growth.

Is it just a coincidence that as the portion of our income spent on food has declined, spending on health care has soared? In 1960 Americans spent 17.5 percent of their income on food and 5.2 percent of national income on health care. Since then, those numbers have flipped: Spending on food has fallen to 9.9 percent, while spending on heath care has climbed to 16 percent of national income. I have to think that by spending a little more on healthier food we could reduce the amount we have to spend on heath care.