Despite the technology has opened up new opportunities for highly specific manipulation of the genetic material of organisms, it has the possible risks of genetic contamination/inbreeding, One key advantage of GMOs is that they can greatly help farmers around the world to increase their crop yields. Farmers often have to rely on rather weak plant strains, which are Complex studies are being carried out around the world independently to evaluate the advantages and disadvantages of GM foods. In this paper, we attempt to summarize up-to-date knowledge about the benefits and potential problems of GM food. Genetic modifications of plants and animals are justified by the potential for improvement of the food situation worldwide, an increase in yield crops, an increase in the nutritional value of food, and the development of pharmaceutical preparations of proven clinical significance. A genetically modified organism (GMO) is one whose genetic material (DNA) has been changed using the techniques of DNA or RNA based genetic engineering. Includes-bacteria, yeast, mammals, insects, fish and plants. GM foods are GMO. GMO is not defined by cloning although that may be involved. gSmf.