When a livestock farmer is willing to "practice complexity"-to choreograph the symbiosis of several different animals, each of which has been allowed to behave and eat as it evolved to-he will find he has little need for machinery, fertilizer, and, most strikingly, chemicals. He finds he has no sanitation problem or any of the diseases that result from raising a single animal in a crowded monoculture and then feeding it things it wasn't designed to eat. This is perhaps the greatest efficiency of a farm treated as a biological system: health.
Michael PollanOne of the powerful things about the food issue is that people feel empowered by it. There are so many areas of our life where we feel powerless to change things, but your eating issues are really primal. You decide every day what you're going to put in your body and what you refuse to put in your body. That's politics at its most basic.
Michael Pollan