The Omnivore's Dilemma: A Natural History of Four Meals by Michael Pollan is a work of popular nonfiction that deals with both the medical and ethical issues of food choices currently made in the United States. In particular, Pollan attacks much of the food industry for not only degrading the environment but for contributing to obesity and related medical conditions.
The book is divided into three main sections, each of which explores the origins of a common type of North American meal. The first section focuses on conventional industrial food production and the role of large scale corn farming on much of fast food. It helps readers understand the process by which meals are produced in the food industry.
The next section focuses on organic farming, examining both large scale organic farms and small family farms. The author suggests that although industrial scale organic farming is superior to conventional farming in terms of its effects on the environment and the quality of the food produced, it still involves large scale monocultures, and is less desirable than farms that raise diverse plants and/or animals on a smaller scale.
Finally, Pollan examines hunting and gathering as a way to create a meal. While this section is entertaining, it not a method feasible for most people, as Pollan acknowledges.