is the fruit of Annona muricata, a broadleaf, flowering, evergreen tree. The
exact origin is unknown; it is native to the tropical regions of the Americas
and is widely propagated. It is in the same genus, Annona, as cherimoya and is
in the Annonaceae family. This
would-be health advisory informs recipients about the supposedly miraculous
cancer killing powers of soursop, the fruit of the Graviola tree.
to the message, soursop is a natural cancer killer that has been proven to be a
whopping 10000 times stronger than chemotherapy in treating cancers. The
message also claims that, although drug companies are aware of the graviola's
amazing cancer fighting properties, they have chosen not to release the
information to the public or pursue further research because they will not be
able to make any money out of it. The message claims that, since the graviola
tree is 'all natural', it is not patentable and drug companies therefore cannot
make profits from it.