Genetically engineering plants and crops to change their DNA has been a cause of much controversy in recent years. But new research has found that Mother Nature might be making its own GM food, as sweet potatoes have been found to genetically modify themselves. And this seems to have been occurring for thousands of years, meaning humans have been unknowingly eating GM foods for much longer than they thought. The remarkable finding of ‘foreign DNA’ in the vegetable shows that it contains a type of natural genetically modified organism (GMO). The research was conducted by scientists from Ghent University in Belgium and the International Potato Institute (CIP). More