What is more dangerous - a bee sting or cyanide? We are surrounded by toxins - in food, cleaning products, cigarettes, and the air. Above all, we think of animals, plants, and fungi. Perhaps we also think of poison-related murders that we constantly read about or encounter in films and television. The topic of poison is both fascinating and frightening. But what exactly is poison? First and foremost, it is anything that harms us. And: Everything is poison, as Paracelsus already stated. It all depends on the dose. Salt is a palatable ingredient in minimal doses on our food. However, if children consume salt dough figures, they can die from a salt overdose. Just as adults can die in the sea after drinking saltwater! Naturally occurring poisons are the most potent substances known. Even a tiny amount of bee venom can harm us after a sting.