how many castor beans are deadly

Dioscorides already knew the purgative properties of castor bean oil in the 1st century A.D.; however, the castor bean plant was not used in Europe until the 18th century. Castor Bean Scientific Facts Healing Properties Castor bean seeds contain around 50 percent oil, ricinine (an alkaloid), and ricin, a toxic glycoprotein that agglutinates red blood…