Every year thousands of cattle or pigs are produced in the laboratory from single cells. Since 2008, the U.S. Food and Drug Administration has allowed the consumption of meat and products from cloned animals.Cloned products are in wide circulation in supermarkets, with no means in place to indicate that they are different from natural products. Faced with this invisible industrial revolution, some experts are sounding the alarm. They believe that this technology could lead to side effects, difficult to predict today and denounce the lack of transparency in the industry.