The results showed that Guyabano’s “leaves and stems were found effective in attacking and destroying malignant cells.
In many independent laboratory tests has proven that Guyabano may be a potent cancer killer.
The most significant part of the report is that Guyabano (Annona Muricata) was shown to selectively target the cancer cells, leaving healthy cells untouched. Unlike chemotherapy, which indiscriminately targets all actively reproducing cells (such as stomach and hair cells), causing the often devastating side effects of nausea and hair loss in cancer patients.
A study at Purdue University found that the leaves from the goyabano tree killed cancer cells among six human cell lines and were especially effective against prostate, pancreatic and lung cancers.
But from other side we have different information that the Memorial Sloan-Kettering Cancer Center and Cancer Research UK state that cancer treatment using soursop is not supported by reliable clinical evidence. According to Cancer Research UK, “Many sites on the internet advertise and promote graviola capsules as a cancer cure, but none of them are supported by any reputable scientific cancer organisations” and “there is no evidence to show that graviola works as a cure for cancer”.
In 2008, the Federal Trade Commission in the United States stated that use of soursop to treat cancer was “bogus“, and there was “no credible scientific evidence” that the extract of soursop sold by Bioque Technologies “can prevent, cure, or treat cancer of any kind.” Also in 2008, a UK court case relating to the sale of Triamazon, a soursop product, resulted in the criminal conviction of a man under the terms of the UK Cancer Act for offering to treat people for cancer. A spokesman for the council that instigated the action stated, “it is as important now as it ever was that people are protected from those peddling unproven products with spurious claims as to their effects.”
In addition, guyabano has been scientifically and traditionally proven to have great natural benefits. It helps lower fever, spasms, heart rate, and blood pressure. It also helps relieve pain, inflammation, and asthma. Consuming guyabano extract can also safely prevent cancer cells from forming while effectively slowing down tumor growth. It also helps stop the growth of harmful bacteria, viruses, fungi, and parasites, even as it stimulates digestion and stop convulsions.
At the ITDI, CED researchers performed thin-layer chromatographic fingerprinting and phyto-chemical screening on the guyabano extract to determine its chemical makeup. They also tested the fruit for anti-microbial capability against Staphylococcus aureus, E. coli, and other common bacteria strains, as well as for acute toxicity.
They used the Folin-Ciocalteau method to determine the antioxidant content of the leaves and fruits. After the screening, the researchers confirmed that the guyabano extract used was relatively free of pesticide residues, heavy metals, molds, and salmonella.
“We also discovered that the green unripe guyabano fruit contains more flavonoids than the yellowish ripe fruit. The leaves meanwhile are rich in tannins, fats and oils, unsaturated steroids, and triterpenes, and again, more flavonoids,” Briones said. “Therefore, all these properties really make guyabano an ideal health supplement.”
So it seems like it is not just an apple a day that could keep the doctor away, but guyabano too!
Usually promoted through direct marketing, guyabano extracts in capsules, juices and tea preparations are claimed to have protective effects from all sorts of cancers. One product brochure that a patient showed me said guyabano extract is supposed to be “a miraculous natural cancer cell killer 10,000 times stronger than standard chemotherapy.”
The guyabano capsules, juices and teas are apparently also more expensive than eating the fresh fruit. I would rather enjoy the succulent taste of a freshly sliced guyabano fruit than pop any commercial pills supposed to have the fruit extract.
I reviewed the scientific literatures recently to see if there are any new research findings demonstrating the anticancer and other health benefits of guyabano in humans. The same old data showing some potential benefits in experimental or animal models are all that I could find.
So from the medical or scientific standpoint, that’s how it stands for now. There is some suggestion that the fruit extract might have the property to inhibit the growth of some cancer cells, but this has only been shown in the laboratory—or at most, in experimental animals—but never in humans. It’s a long way from being declared an anticancer fruit with truly clinically meaningful effects. Testimonials from celebrities or even anecdotal reports from doctors of their patients who were supposed to be cured by guyabano extracts don’t really count.
The danger is when some believe these testimonials saying that guyabano is all they need to be cured and discontinue taking standard medicines prescribed by their physicians. One stands the risk of suffering from the worsening of his/her illness without the benefit of treatments which have been tried and tested in humans.