Some everyday foods can be dangerous if not prepared correctly. Cassava, for example, must be soaked and thoroughly cooked to remove compounds that release cyanide. Starfruit also poses risks — while safe for most, it contains neurotoxins that can be deadly for people with kidney disease.

Even familiar fruits carry hidden hazards. Cherry pits, bitter almonds, and apple seeds contain cyanide-producing compounds, while green potatoes exposed to light develop solanine, a poison that can cause nausea, headaches, and even nerve damage.

Certain nuts and plants are risky as well. Raw cashews and mango skin contain urushiol, the same chemical in poison ivy, which can trigger severe allergic reactions. Elderberries, rhubarb leaves, and raw kidney beans also carry natural toxins that require proper cooking to be safe.

Seafood and spices aren’t exempt either. Pufferfish (fugu) contains a deadly toxin, prepared only by trained chefs in Japan. Even nutmeg, when consumed in very large amounts, can cause hallucinations and seizures. These examples remind us that while food nourishes us, understanding its risks is vital to keeping meals safe.