Genetically modified foods were first put on the market in 1996. Typically, genetically modified foods are transgenetic plant products: soybean, corn, canola, rice, and cotton seed oil. Animal products have also been developed, although as of July 2010 none are currently on the market. In 2006 a pig was controversially engineered to produce omega-3-fatty acids through the expression of a roundworm gene. Researchers have also developed a genetically-modified breed of pigs that are able to absorb plant phosphorus more efficiently, and as a consequence the phosphorus content of their manure is reduced by as much as 60%.
Critics have objected to GM foods on several grounds, including safety issues, ecological concerns, and economic concerns raised by the fact these organisms are subject to intellectual property law.
If you missed this show you will definitely want to catch it in podcast, some really great information came from my guests Dr. Amy L. Dean and Dr. Frederick Kirshemann.
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