A great piece in the Utne Reader on the myth of a natural, pure culinary past:

For our ancestors, natural was something quite nasty. Natural often tasted bad. Fresh meat was rank and tough, fresh fruits inedibly sour, fresh vegetables bitter. Natural was unreliable. Fresh milk soured; eggs went rotten. Everywhere seasons of plenty were followed by seasons of hunger. Natural was also usually indigestible. Grains, which supplied 50 to 90 percent of the calories in most societies, have to be threshed, ground, and cooked to make them edible.

So to make food tasty, safe, digestible, and healthy, our forebears bred, ground, soaked, leached, curdled, fermented, and cooked naturally occurring plants and animals until they were literally beaten into submission. They created sweet oranges and juicy apples and non-bitter legumes, happily abandoning their more natural but less tasty ancestors. They built granaries, dried their meat and their fruit, salted and smoked their fish, curdled and fermented their dairy products, and cheerfully used additives and preservatives—sugar, salt, oil, vinegar, lye—to make edible foodstuffs....

Happiness was not a verdant Garden of Eden abounding in fresh fruits, but a securely locked storehouse jammed with preserved, processed foods.

For more on the misguided notion of natural food, go here.