|Here's a little of what the
journalist Michael Pollan says in his 2008 book, In Defense of Food. It's a
wonderful book and very easy to read.
"There's no escaping the fact that better food--whether measured by taste or nutritional quality (which often correspond)--costs more, usually because it has been grown with more care and less intensively. Not everyone can afford to eat high quality food in America, and that is shameful; however those of us who can, should. Doing so benefits not only your health (by, among other things, reducing exposure to pesticides and pharmaceuticals) but also the health of the people who grow the food as well as the people who live downstream and downwind of the farms where it is grown.
"Another important benefit of paying more for better-quality food is that you're apt to eat less of it."
"It is well established that how much we eat is strongly influenced by the cost of food in terms both the money and effort required to put it on the table. The rise in obesity in America began around 1980, exactly when a flood of cheap calories coming of American farms, prompted by Nixon-era changes in farm policy. American farmers produced 600 more calories per person per day on 2000 that they did in 1980. But some calories got cheaper than others: Since 1980 the price of sweeteners and added fats most of them derived, respectively from subsidized corn and subsidized soybeans (dropped 20 percent, while the price of fresh fruits and vegetables increased by 40 percent. It is the cheaper and less healthful of these two kinds of calories on which Americans have been gorging.
"These are precisely the kinds of calories found in convenience food--snacks, microwavable entrées, soft drinks, and packaged foods of all kinds--which happens to be the source of the 300 or so extra calories Americans have added to their daily diet since 1980. So these foods are cheap in a second sense too: They require very little, if any, time or effort to prepare, which is the other reason we eat more of them. How often would you eat french fries if you had to peel, wash, cut and fry them yourself--and then clean up the mess? Or ever eat Twinkies if you had to bake the little cakes and then squirt the filling in them and clean up?"
"'Eating is an agricultural act,' Wendell Berry famously wrote, by which he meant that we are not just passive consumers of food but cocreaters of the systems that feed us. Depending on how we spend them, our food dollars can either go to support a food industry devoted to quantity and convenience and "value" or they can nourish a food chain organized around values--values like quality and health. Yes, shopping this way requires more money and effort, but as soon you begin to treat that expenditure not just as shopping but also as a kind of vote--a vote for health in the largest sense--food no longer seems like the smartest place to economize."
(The quote 'Eating is an agricultural act' is taken from an essay Wendell Berry wrote called "The Pleasures of Eating", in his 1990 book "What Are People For?")