Genetically engineered food is food which is enhanced by the addition of genes from different species to make them better. Genes are, in the most basic interpretation, codes that are responsible for certain characteristics, the production of certain enzymes or to create a certain appearance, and in the case of genetically engineered food the genes are often put in place to create enhanced versions of regular food. Since it is quite a costly process to develop, genetically engineered food is patented by large corporations that are responsible for their research and development.A study has reveled that in certain strains of genetically modified corn such as MON 810 and MON 863 which are genetically modified corn strains that are resistant to pests and is fortified to withstand weed killer has disrupted the chemistry of the blood of rats that were fed with these strains of genetically modified corn. Other negative symptoms also have been associated with the rats that were fed wi th genetically modified corn and certain types of maize, for instance, unusual amounts of hormones were found in the blood and urine samples of the rats under the experiments, scientists are thus suggesting such abnormal amounts of hormones may impair kidney and liver function in the long run by consuming genetically modified corn and maize. The female rats that were fed with the genetically modified corn strain of MON 863 had a higher blood sugar levels and raised level of cholesterol known as triglycerides, and both of these symptoms are precursors to diabetes and heart disease.Though there is still no veritable proof of the toxicity associated with genetically modified corn and its produce, the findings of the experiments do prove that they do have some effect and changes in the overall functions of the bodies of the rats who were apart of the experiments, thus researchers are implying that the same effects are a possibility in humans as well and additionally .The tolera nce of herbicide is one of other benefits of genetically modified foods. Usually, the crops are sensitive for the other weeds in the field and due to the same, crop would produce less amount of production. In the conventional method, the farmer will have to spray chemicals in order to control the weeds, a few times. With benefits of genetically modified foods, farmer will have to use chemicals only one time and the benefits of genetically modified foods do the rest.

Due to the changes in climate, such as coldness, farmers are not able to do farming during certain periods of the year. Most of the foods do not tolerate extreme weather or climate changes, so as a result, crops may produce low volumes. In order to address this, genes of the plants that can withstand coldness have been added to the food producing plants, making the latter category more cold resistant. This is one of key benefits of genetically modified foods. As another benefits of genetically modified foo ds, in some other countries, paddy has been developed genetically where they can withstand low water supply. Water is one of the burning issues in some of the developing countries.