GM foods are those that were produced from a genetically modified organism by genetic engineering. Put another way, is that food obtained from an organism to which they have incorporated other genes to produce desired characteristics. 

Currently have a greater presence of food from transgenic plants such as corn or lasoja. 

Genetic engineering or recombinant DNA technology is the science of manipulating DNA sequences directly, allowing extraction of a given taxónbiológico and their inclusion in another, and the modification or elimination of these genes.