What is a GMO?back to top
A GMO (genetically modified organism) is the result of a laboratory process where genes from the DNA of one species are extracted and artificially forced into the genes of an unrelated plant or animal. The foreign genes may come from bacteria, viruses, insects, animals or even humans. Because this involves the transfer of genes, GMOs are also known as “transgenic” organisms.
This process may be called either Genetic Engineering (GE) or Genetic Modification (GM); they are one and the same.
Where are they?back to top
In your food! First introduced into the food supply in the mid-1990s, GMOs are now present in the vast majority of processed foods in the US. While they are banned as food ingredients in Europe and elsewhere, the FDA does not even require the labeling of GMOs in food ingredient lists.
Although there have been attempts to increase nutritional benefits or productivity, the two main traits that have been added to date are herbicide tolerance and the ability of the plant to produce its own pesticide. These results have no health benefit, only economic benefit.
What foods are GM?back to top
Currently commercialized GM crops in the U.S. include soy (94%), cotton (90%), canola (90%), sugar beets (95%), corn (88%), Hawaiian papaya (more than 50%), zucchini and yellow squash (over 24,000 acres).
Products derived from the above, including oils from all four, soy protein, soy lecithin, cornstarch, corn syrup and high fructose corn syrup among others.
There are also many “invisible ingredients,” derived from GM crops that are not obviously from corn or soy.
Why should you care?back to top
Genetically modified foods have been linked to toxic and allergic reactions, sick, sterile, and dead livestock, and damage to virtually every organ studied in lab animals. The effects on humans of consuming these new combinations of proteins produced in GMOs are unknown and have not been studied.
Crops such as Bt cotton produce pesticides inside the plant. This kills or deters insects, saving the farmer from having to spray pesticides. The plants themselves are toxic, and not just to insects. Farmers in India, who let their sheep graze on Bt cotton plants after the harvest, saw thousands of sheep die!
Herbicide tolerance lets the farmer spray weed-killer directly on the crop without killing it. Comparative studies on the toxic residues in foods from such crops have not yet been done.
Pollen from GM crops can contaminate nearby crops of the same type, except for soy, which does not cross-pollinate. In fact, virtually all heritage varieties of corn in Mexico (the origin of all corn) have been found to have some contamination. Canola and cotton also cross-pollinate. The long-term effects on the environment could be disastrous.
See more under Environmental Dangers.
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Information provided by Jeffrey Smith via Institute of Responsible Technology
Photo Source: IvanWalsh.com via Flickr [Corn Kernals], NatalieMaynor via Flickr [Farmer’s Market]