"Organic fruits and vegetables contain 40 percent more nutrients than their chemical-fed counterparts. And animals raised on pasture provide us with meat and dairy products containing more beta carotene and at least three times as much C.L.A. (conjugated linoleic acid, shown in animal studies to reduce the risk of cancer) than those raised on grain."Change We Can Stomach - New York Times
"conventional produce appears to contain consistently higher levels of protein and beta carotene."
"There are plenty of good reasons to eat organic produce and yak cheese and grass-fed beef. In the end, neither exaggerated virtues nor skeptical grains of salt will make them any more delicious. Forget the fatty acids. I just want to get a taste of that wild Himalayan milk."
Let's Take a Closer Look at That Study on Yak Cheese NYT