According to a survey conducted by Stanford University in the United States, the market value of the organic market in the United States in 1997 was $3.7 billion, and by 2010 it had grown to $26.7 billion. Organic food refers to the absence of any pesticides, fertilizers, antibiotics, hormones and genetically modified ingredients in the growth and production of food. Whether we buy organic food is really worth it.
Scientists say there are many reasons why consumers choose organic foods. It is widely believed that organic foods are more nutritious than ordinary foods. So far there is no evidence to support this claim.
The survey analyzed 17 human studies and 223 studies on food nutrient density and pollution levels, and concluded that there is currently no strong evidence that organic foods are more nutritious. But choosing organic foods may reduce the exposure to bacteria and antibiotic-resistant bacteria.
When it comes to bacterial contamination, there is no significant difference between organic and general foods. E. coli was detected in 7% of organic foods and 6% of common foods. However, only five studies directly compared the bacterial contamination of the two foods.
On the other hand, organic animal products and common animal products are found to contain harmful pathogens. The difference between the two products is minimal.
Taking chicken as an example, 67% of organic samples and 64% of common samples contain Campylobacter, 35% of organic samples and 34% of common samples contain Salmonella. E. coli is contained in 65% organic pork and 49% normal pork samples. No comparison has been found between organic beef and regular beef.