This paper will talk about genetically modified organisms (GMOs), how it came to light, what advantages and disadvantages they bring to humans and the environment. You could say that this is a very revelant topic in the world because there are many who are in favor of applying GMOs and those who are against it. There is a lot of debate about GMOs as it has a major impact on people's nutrition, health and lives, and because of today's advanced society, people are able to choose how they will live, and the assumption is that most want to live healthy, or are in doubt about it whether GMOs are healthy or not. GMOs allow cheaper food production, which results in higher producer eamings and lower food costs than organic food production. Because of these reasons, and some others, it comes a debate between GMO supporters and those who are against it. No matter how much cheaper it is to produce and some other benefits, a large percentage of people stands that such products should be banned because by developing and consuming such foods and products, we are hanning ourselves, and human life and the environment are very important in order to continue to live and develop in a natural and proper way. In order to protect consumers from the enonnous influence of GMO manufactures and sales companies, states and other institutions introduce certain laws and restrictions. But above all, it is also necessary to explain what GMOs really are, because most of society is against them, and in fact a large percentage of them do not know what they are.