The best farming systems are ones where animals and plants are put into a synergistic relationship.
Michael PollanWhen 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 PollanThat eating should be foremost about bodily health is a relatively new and, I think, destructive idea-destructive not just the pleasure of eating, which would be bad enough, but paradoxically of our health as well. Indeed, no people on earth worry more about the health consequences of their food choices than we Americans-and no people suffer from as many diet-related problems. We are becoming a nation of orthorexics: people with an unhealthy obsession with healthy eating.
Michael Pollan