Graviola or guanabana (annona muricata) is a tree that grows in tropical areas, mainly in the Peruvian Amazon. Its shell is green and its taste is bittersweet. It is the most power-injecting anticancer on the planet used for more than 40 years in USA, Europe and Asia. In 1976 Dr. Jerry mc laughlin of purdue university discovered acetogenins in graviola. It is currently used in the treatment of certain types of cancers due to the presence of acetogenins, which would have an activity similar to that of certain products used for chemotherapy. In addition, graviola is a plant from which you can take advantage not only of the fruit, but also, its different parts.