adulterated food

Not long ago there was a rumor on the internet that KFC had had to remove the word chicken from its name because what they were actually selling was not chicken, but something genetically created. Some surprising photos even circulated. Food is often the victim of urban myths: MacDonald's hamburgers are actually made from worms, Chinese restaurants serve dog meat, and cockroaches appear in cans of dog pate. These legends are nourished by the fact that sometimes scandalous news does appear in the newspapers, such as that of the Ikea cake in whose analysis they found human excrement, but I want to think that in Europe at least there is a strict control of security measures and food hygiene, or not? My favorite urban legend of food comes from my childhood, at school the rumor spread that if you mixed Coca-Cola with aspirin, drugs would come out. Thus, in hyperonym: "drug". Drug I don't know, but I'm sure it's an explosive mixture for the stomach.