Soursop Myth and Truth
Soursop belongs to the plant family Annonaceae, genus Annona and the specie muricata. To the same genus belong the sweet apple and the cherimoya, the latter from the higher regions of the Andes.
The fruit of the soursop is used to prepare a deliciously refreshing juice, for special ice creams and joghurts. The fruit is known in other languages as zuurzak, paw paw, guanábana, sauersack, sirsak, durian belanda, anona, graviola etc.
Many medicinal properties are ascribed to this fruit by different people around the world, but scientifically these are exaggerated for now, as this genus is really under-investigated. Drinking the juice gives one a calming effect and has a slight diuretic effect. Some believe that the pulp of the fruit is having a positive effect on the repair of cells. There are more studies underway as lots of people around the world have high expectations and are anxiously waiting for answers. There are some potentials as various metabolites were found.
It is a given fact though, that the seeds are not suitable for human consumption. They contain a highly concentrated neurotoxin, named Annonacin, which seems to have a connection to neurodegenerative diseases. As such a University in the Caribbean linked this toxin to an atypical form of Parkinson´s Disease. Avoid shredding the seeds when preparing the pulp in the blender.
The pulp is very thick and could easily be diluted at a 2:1 ratio. It is not yet well known if the pulp also carries some of the neurotoxins, so drink this very refreshing juice sparsely.
Reference: Soursop – Myth, Truth and Hoax