Genetic engineering refers to the direct manipulation of the genetic information of living beings. Genes, embedded in DNA, are the patterns of life that determine particular traits in an organism. With biotechnology, genetic engineers are able to replace these genes from one organism to another, resulting in entirely new combinations of traits that do not occur in nature. These genetically modified organisms are artificially enhanced to express desired characteristics that are useful to us. Although genetically modified foods introduce numerous new beneficial possibilities, such as increased nutritional value and high crop yields, they also pose a wide range of risks to human health and the natural environment and can have serious unforeseen consequences long term. Human nutrition has been a topic of debate for decades. Despite all the controversies and protests, genetically modified crops and plants have been part of our diet for a long time. The first commercially grown genetically modified food was a tomato called "Flavr Savr". Produced by the Californian company "Calgene", the tomato managed to resist the natural rotting process.() It was licensed for human consumption by the US Food and Drug Administration (FDA) in 1994.() From then on varieties by Genetically modified foods have replaced our natural diet. As of 2013, approximately 85% of corn, 91% of soybeans, and 88% of cotton produced in the United States are genetically modified.() According to recent estimates, 75% of all processed foods contain genetically modified genes. () This sudden increase in GMOs is a result of the ever-increasing demand for food with limited agricultural land. The current world population is around 7.1 billion people and UN projections show that genetically modified crops and plants are likely to be limited on farms and there will be no opportunity to breed with wild species, but they too believe that the risk is certain. Genetic engineering is certainly a breakthrough in biotechnology with the potential to stop the global food crisis and malnutrition. It has the possibility of eliminating the enormous pressure on agriculture with more yields and less land. With less land needed for agriculture, genetic engineering can restore lost ecosystems to the environment. But the potential harms of GE products are unpredictable and unpredictable. Instead of creating new ecosystems, its known and unknown effects can create large disturbances in the entire global environment. Therefore genetic engineering can create irreparable damage to our natural environment and threaten the existence of the living earth.