To say that graviola is "unproven" as a cancer treatment is a vast understatement. As far as I can see the researchers have only recently gotten as far as trying it on mice
. Human trials are a long way off. Several researchers have grown cancer cells in petri dishes and treated them with extracts of graviola leaves (Annona muricata) and shown that their growth is inhibited. One study (linked below) found that graviola reduced the rate at which pancreatic
cancer tumors grew in mice.
Graviola is not the same as a pawpaw. There are a number of plants called a pawpaw, one of them is a variety of papaya. I think one of these "pawpaw" plants is related to Graviola but not the same thing.
Here is a link to a Wikipedia page for Graviola (also known as Soursop): /en.wikipedia.org/wiki/Soursop
And some more: /en.wikipedia.org/wiki/Annona_muricata
Here is a link to some promising research: Graviola: A Novel Promising Natural-Derived Drug That Inhibits Tumorigenicity and Metastasis of Pancreatic Cancer Cells In Vitro and In Vivo Through Altering Cell Metabolism Note: when you see "PC" in this study it refers to "pancreatic" cancer, not prostate cancer.
I did find one web site that had a very sciency-sounding descript
ion of a cancer treatment they recommend using either graviola or pawpaw. Since you asked about
pawpaw being the same thing you might have seen the same page. If you did, you might click around on their site and look at some of their other "treatments" to see if there aren't some that set of your quackery detectors. And please, please
do not send them twenty-five thousand dollars for their "photon therapy" machine. An overpriced tanning bed will not
cure your dad's cancer.
As for the graviola --
- talk to his doctor about it,
- don't let is distract you from actual proven treatments,
- if your dad wants to grasp at straws he should talk to his doctor about clinical trials (there are some good ones),
- don't pay more than one dollar a day for graviola (it's not expensive),
- knock yourself out.