Originally, all foods were "organic" – grown and prepared without pesticides, herbicides, chemical fertilizers, hormones, irradiation to prevent spoilage, microwave cooking, etc. They were also unrefined, whole foods, or with at most minimal refinements. Since World War II and the advent of chemical farming and food processing, the soils and foods of much of the world have been depleted of minerals and other nutrients.
Read more: Top Ten Reasons to Eat Organic