An oncology dietitian has issued a stark warning to cancer patients and survivors, urging them to avoid relying on a popular alternative remedy that she states categorically 'doesn't work' and may cause harm.
The Viral Warning Against a 'Miracle' Tea
Nichole Andrews, a registered oncology dietitian who uses social media to debunk nutrition myths, recently addressed a direct question from a viewer. The individual, undergoing hormone blockers for breast cancer, asked if they should consume soursop, also known as graviola.
In a clear response via TikTok, Andrews advised: "Do not use soursop as any type of treatment method for cancer. It will not work." She emphasised that it is not a safe choice, as it can cause side effects and create issues for survivors during their treatments.
What is Soursop and Where's the Evidence?
Soursop is a large green tropical fruit, and a caffeine-free tea is often brewed from its leaves. While it is promoted for various health benefits, including antibacterial and antioxidant properties, it has also been heavily marketed in some circles as a natural cancer cure.
Both Nichole Andrews and the charity Cancer Research UK state there is insufficient reliable evidence to support its use for treating cancer. Laboratory studies have shown that extracts can kill certain types of cancer cells—including liver, breast, and prostate cancer cells—in a petri dish. However, these studies have not been replicated in humans.
Cancer Research UK notes that many online sites promote graviola capsules as a cancer cure, but these claims are not supported by reputable scientific cancer organisations.
Potential Risks and Nerve Damage Concerns
The warnings extend beyond mere ineffectiveness. Experts highlight potential adverse side effects linked to chemicals within the fruit. Cancer Research UK states that some substances in graviola are a cause for concern among scientists, as they may lead to nerve changes and movement disorders.
"The nerve changes may cause symptoms like Parkinson's disease," the charity explains on its website. "Laboratory research has found that some substances in graviola can cause nerve damage. It crosses into the brain from the bloodstream."
It is considered unlikely that soursop consumed occasionally as part of a balanced diet in food or drink would pose a significant risk. The critical advice is for patients to avoid using it in concentrated forms as a treatment substitute.
The overarching message from healthcare professionals is clear: patients should always consult their GP or oncology team before starting any complementary or alternative therapy. For reliable information, Cancer Research UK's website remains a trusted resource for understanding the evidence behind such treatments.
