American farmers produced 600 more calories per person per day in 2000 than 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.

In Defence of Food: The Myth of Nutrition and the Pleasures of Eating (ed. Penguin UK, 2008) - ISBN: 9780141908519