A December study in the International Journal of Biological Sciences showed that eating genetically modified (GM) corn damaged several organs, especially the kidneys and liver (http://www.biolsci.org/v05p0706.htm). “Genetically modified” means that the corn DNA has had foreign genes, such as a bacteria, forced into it with the idea that this new type of corn will be more resistant to herbicides and able to produce its own insecticides. This is concerning because 85% of commercial corn grown in the USA is GM, therefore most Americans are eating it regularly. It is “hidden” in many products as corn flour, corn syrup, high fructose corn syrup, and corn starch. It has also been fed to animals that are raised non-organically, commonly cows, chicken, and pigs.
The topic of GM foods is controversial, but I agree with the American Academy of Environmental Medicine who are concerned about the negative health effects associated with eating these foods and advise patients to avoid them. Since corn and soy are the most abundant GM crops, buy only organic corn and soy products!
I recommend educating yourself on the topic and making your own conclusions. For further info on GM: http://www.responsibletechnology.org/GMFree/GMODangers/FAQs/index.cfm