Not a list of toxic foods would be missing the mushrooms amanita Phalloides mushrooms, especially with Ocreata aka is considered the "Angels of destruction". Although we still know the danger from mushrooms, but the poisoning cases still occur each year because people often have difficulty in distinguishing the fungus.
Like bitter almonds, cassava may also contain Cyanide. If you have missed touching you should wash carefully with SOAP and leave to dry. This virtually foods do no harm in the East because it is processed properly. However here again is the cause of many deaths in Africa.
Lima bean unprocessed food can lead to tragedy. This bean type, also known as butter beans, may contain large amounts of cyanide. But this is the kind of delicious and nutritious food, if you want to enjoy then make sure it has been properly processed to remove most of the poison.
Plant rhubarb is often used in the making of the cake but its leaves contain oxalic acid--a chemical compound available in bleach, cleaning products or against rust. Leaves of this plant contain chemicals that cause burns of the mouth, a sore throat and nausea can make you very uncomfortable.
While castor oil can treat various diseases, the seeds of it deadly again. When chewing nuts it may secrete the poison ricin, one of the most potent toxins known to man (stronger than cyanide 6000 times). A very small amount of grain is enough to lead to immediate death.=