One of the first proponents of eating organic food was Dr. Max Gerson, MD, who instructed his cancer patients to eat organic fruits and vegetables, starting in the 1920s. Interest in organic food dramatically increased in the 1960s, when several pesticides and fertilizers were found to be toxic to humans or animals. Third-party organic certification was first instituted in the 1970s by the some regional organic farming groups. Growers, consumers, and others in the agricultural industry began pushing for government-defined organic labeling in the 1980s.
In the 1990s, the United States Congress passed the Organic Foods Production Act (OFPA), which required the United States Department of Agriculture (USDA) to develop national standards for organically produced agricultural products to assure consumers that products marketed as organic meet these standards. The National Organic Program (NOP), part of the USDA's marketing service division, was created to fulfill the Organic Foods Production Act's directives. Neither the OFPA nor the NOP regulations address food safety or nutrition.
In 2002, the USDA finalized its organic definition and inspection program, which was the most stringent in the world at that time. Since then, a few attempts to relax the guidelines occurred, primarily in 2003 and 2005.
According to the Organic Trade Association's 2006 Manufacturer Survey, the United States organic industry grew 17% overall to $14.6 billion in consumer sales in 2005: organic foods increased by 16.2% and was $13.8 billion in consumer sales and non-food organic products increased 32.5% to total $744 million.
Currently, in the United States, a product is considered "organic" if the food, the farm, handlers, and processors of that food all meet specific criteria from the United States Department of Agriculture (USDA). Meat is organic if the animals do not receive any antibiotics or growth hormones, and produce is considered organic if it was grown without most conventional pesticides, or synthetic or sewage sludge-based fertilizers. Genetically modified (GMO) or bioengineered animals and crops are not allowed to be labeled organic, nor are products that have been ionized with radiation.
Many people who choose to consume organic food vs. non-organic food do so because they believe that the food is more nutritious, contains few toxins from additives and pesticides, is more humane for livestock, or is more ecologically minded.
The USDA does not claim that organically produced food is safer or more nutritious than conventionally produced food.
Currently high quality studies supporting increased overall health for consumers of organic foods are lacking as are long-term safety studies. These studies are difficult to design and implement.
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