Could Parasites Be Fueling Cancer? These Doctors Think So

When we hear the word cancer, most of us picture rogue cells growing out of control. But some trained doctors and scientists are now asking a deeper question:

What if parasites or the inflammation they cause, are helping cancer take root and grow?

This may sound strange, but it's not coming from internet conspiracy theories. It's coming from medical doctors, PhDs, and researchers who believe parasites could be a missing piece in the cancer puzzle, especially in prostate cancer.

A Hidden Source of Chronic Inflammation?

Doctors and researchers now exploring this idea believe parasites may not directly “cause” cancer, but they can:

  • Disrupt the immune system
  • Trigger chronic inflammation
  • Create toxic waste that damages cells

And that's a perfect storm for cancer to grow—especially in places like the prostate, where chronic inflammation is already a known risk factor.

Could Parasites Be Fueling Cancer&##x3f; These Doctors Think So

Consider This:

  • Toxoplasma gondii, a common parasite from undercooked meat or cat feces, has been shown in lab studies to infect the prostate in mice, causing lasting inflammation.
  • Trichomonas vaginalis, a parasite passed sexually, has been linked in studies to higher prostate cancer risk in men—possibly by triggering long-term prostate irritation.

So the question is: If parasites cause inflammation, and inflammation helps cancer grow, are parasites part of the root cause?

Can Anti-Parasitic Drugs Help Treat Cancer?

Several common anti-parasitic medications are now being studied for their ability to kill cancer cells—especially in prostate, colon, lung, and liver cancer models.

Could Parasites Be Fueling Cancer&##x3f; These Doctors Think So

Here's what real doctors are saying:

Featured Doctors Exploring Parasites and Cancer

1. Dr. Lee Merritt, M.D. (USA)

  • Background: Orthopedic surgeon, former Navy physician, advocate of integrative medicine.
  • Quote: “Doctors around the world are showing that cancer is intracellular parasites.”

Dr. Merritt on Twitter - Suggested Treatments:

  • Ivermectin and fenbendazole
  • Immune support and detoxification
  • Cancers Mentioned: General cancers, with specific interest in prostate, lung, and breast

2. Dr. Todd Watts, D.C., PSc.D. (USA)

  • Background: Co-founder of CellCore Biosciences; functional medicine practitioner specializing in parasite cleansing.
  • Quote: “Parasites and environmental toxins can interfere with cardiovascular and immune function.”

CellCore Webinar - Suggested Treatments:

  • Mimosa pudica seed, black walnut, clove
  • Bowel and liver detox protocols
  • Cancers Mentioned: Not specific, but discussed in the context of long-term immune damage and inflammation

Could Parasites Be Fueling Cancer&##x3f; These Doctors Think So

3. Dr. Hulda Clark, PhD, N.D. (USA – Deceased)

  • Background: Biologist and naturopathic doctor, author of The Cure for All Cancers
  • Quote: “The method is 100% effective in stopping cancer regardless of the type of cancer or how terminal it may be.”

Suggested Treatments:

  • Herbal parasite cleanse: Wormwood, black walnut, cloves
  • Electronic “Zapper” device
  • Heavy metal and chemical detox
  • Cancers Mentioned: Claimed to treat all types of cancer by eliminating Fasciolopsis buski, a flatworm

4. Dr. Andreas Kalcker (Germany/Switzerland)

  • Background: Biochemist, researcher, advocate of chlorine dioxide (CDS)
  • Quote: “Chlorine dioxide may be the most effective antiparasitic and antimicrobial agent we've seen.”

Suggested Treatments:

  • Chlorine Dioxide Solution (CDS) protocols
  • Cancers Mentioned: Claims benefit across multiple cancer types, including prostate and liver, but no formal trials

5. Dr. Alex Volinsky, Ph.D. (USA/Russia)

  • Background: Engineering professor and researcher of intestinal “rope worms”
  • Quote: “We discovered a new type of intestinal parasite—rope worms—with a five-stage life cycle.”

Paper on arXiv.org

  • Suggested Treatments:
  • Salt milk enemas, eucalyptus, lemon, baking soda
  • Cancers Mentioned: Speculative connections to digestive and immune-related cancers

Could Parasites Be Fueling Cancer&##x3f; These Doctors Think So

Research Labs Also Getting Involved

  • Mebendazole: Used for pinworms. Shown to boost chemo effects in mouse models of prostate cancer.
  • Fenbendazole: A veterinary dewormer now studied for anticancer effects in lung, prostate, and colon cancer lab models.
  • Ivermectin: Kills parasites. Lab studies show it disrupts cancer cell signaling in prostate, colon, and breast cancer.
  • BKIDC-1553: A new drug derived from anti-parasitics. Being tested for advanced prostate cancer that resists treatment.

What Should You Do with This Information?

This isn't mainstream yet. These treatments are not FDA-approved for cancer, and most of the studies so far have been done in petri dishes or animals—not in large human trials.

And here's one possible reason why: most clinical trials are funded by pharmaceutical companies that have no financial interest in testing cheap, off-patent drugs like fenbendazole or ivermectin. 

If a medicine can't be patented and sold at a high profit, it's far less likely to get funding for further research,even if early results are promising.

Still, a small but growing number of doctors, researchers, and cancer centers are paying attention, and for good reason.

If you're a man with prostate cancer, especially if you're on active surveillance or trying to avoid surgery or radiation, this emerging area of research may be worth exploring with a knowledgeable integrative or functional medicine practitioner who's open to thinking outside the box.

Could Parasites Be Fueling Cancer&##x3f; These Doctors Think So

The Prostate Warrior's Conclusion: 

This isn't a miracle cure or a replacement for careful medical guidance. But it's a fascinating area of science that may change the way we think about prostate cancer in the future.

Sometimes, the oldest enemies—like parasites—may be hiding in plain sight. And the drugs to fight them may already be in your medicine cabinet.

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About the Author

Scott Oliver, 66, is living well with prostate cancer after dedicating more than 4,000 hours to researching the condition. His first goal is to help men reduce their risk of developing prostate cancer through proven lifestyle strategies.

When diagnosed, his mission is to help men avoid unnecessary prostate surgeries that can lead to devastating complications such as incontinence, bleeding, permanent impotence, and a loss of length.

Scott Oliver is not a doctor and does not offer medical advice; however, he is healthier and fitter than he has been in decades. Through his articles and videos, he shares hard-to-find, uncensored information on proven alternative therapies, effective fitness methods, and repurposed drugs, content that most doctors won’t mention and search engines suppress.

He is an accredited member of the National Writers Union (NWU) and the International Federation of Journalists (IFJ), the world’s largest organization of professional journalists. Scott is also the author of What If Cancer’s Best Defense Is Free? Sleep as a Defense Against Cancer: A Former Royal Marines Commando’s 4,000-Hour Research Roadmap, where he reveals how sleep repairs DNA, restores immunity, and strengthens the body’s natural defenses against cancer.

You can always contact Scott Oliver here with your questions and suggestions.

Expert Resources Used To Research This Article: 

  1. “Common parasite can infect and promote disease in the prostate”. Indiana University School of Medicine. https://medicine.iu.edu/blogs/research-updates/common-parasite-can-infect-and-promote-disease-prostate

  2. “Trichomonas vaginalis and risk of prostate cancer: revisiting the evidence”. The STI Clinic / Harvard-affiliated sources. https://www.thesticlinic.com/news/2017/11/16/TrichomonasAndProstateCancerLinkQuestionedByNewStudy.aspx

  3. “Repurposing anti-parasitic drugs for cancer treatment". National Center for Biotechnology Information (NCBI). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7505114/

  4. “Ivermectin inhibits tumor growth by affecting cancer cell pathways”. Cell Death & Disease (Nature Publishing Group). https://www.nature.com/articles/s41419-022-05182-0

  5. “Game-changing prostate cancer treatment may soon be available to patients”. Worldwide Cancer Research. https://www.worldwidecancerresearch.org/news-and-press/news-and-press/game-changing-treatment-for-prostate-cancer-could-become-available-to-patients/

  6. “Existing parasite drug may fight prostate, colon cancer”. Drug Discovery & Development. https://www.drugdiscoverytrends.com/existing-parasite-drug-may-fight-prostate-colon-cancer/

  7. “Fred Hutch tests new compound derived from anti-parasitic drugs for advanced prostate cancer”. Fred Hutchinson Cancer Center. https://www.fredhutch.org/en/news/spotlight/2024/05/ccsg-uo-molcancerther.html

  8. “Rope parasites: New type of intestinal parasite?” arXiv.org (Alex Volinsky et al.) https://arxiv.org/abs/1301.2845

  9. Dr. Lee Merritt Quote – ‘Cancer is intracellular parasites'. Twitter/X.  https://twitter.com/docmartin22/status/1860603586046218430

  10. CellCore Biosciences Webinar – Dr. Todd Watts on parasites and immune health. https://www.youtube.com/watch?v=Xu1RQEGkgn8

  11. Hulda Clark – The Cure for All Cancers. https://en.wikipedia.org/wiki/Hulda_Regehr_Clark

  12. Andreas Kalcker on chlorine dioxide as anti-parasitic therapy

  13. Coverage from The Guardian (note: critical source).  https://www.theguardian.com/us-news/2025/apr/27/trump-golf-club-speaker-bleach

Books on Parasites and Cancer.

  1. Cancer Is a Parasite, Not A Disease: What If Everything You've Been Told About Cancer Is a Lie?: Alternative Cancer Treatment and Parasite Cleanse Book. https://www.amazon.com/Cancer-Parasite-Not-Disease-Alternative/dp/B0F13JK2M3/

  2. Cancer Is Not a Disease; It Is a Symptom: Beyond Fear: Unlocking the Body's Silent Signals and Reclaiming Your Path to Well-Being. https://www.amazon.com/Cancer-Not-Disease-Symptom-Reclaiming/dp/B0DYNHCGS7/

  3. The Ultimate Guide to Parasite Cleanse: Natural Methods, Nutritional Plans and Home Remedies To Treat, Eliminate and Prevent Parasites For People, Children, Pets and Travelers. https://www.amazon.com/Ultimate-Guide-Parasite-Cleanse-Nutritional/dp/B0DFMM3FTJ/

  4. The Cancer Parasite – The Livingston Foundation. https://www.amazon.com/Cancer-Parasite-Livingston-Foundation/dp/B09WSXLY4M

  5. Cancer and the Parasite. https://omnichristianbookclub.com/product/cancer-and-the-parasite/

  6. The Successful Eradication Of Cancer Using An Intracellular Parasite Theory.  https://herbalresults.net/shop/the-successful-eradication-of-cancer-using-an-intracellular-parasite-theory-an-interactive-e-book/

  7. Parasites That Cause Cancer – Invisible Invaders with Deadly Consequences by Hugo Ball. https://www.amazon.com/Parasites-Cancer-Invisible-Invaders-Consequences/dp/B0DGT62DD8

  8. Cancer Is a Parasite, Not A Disease by Hugo Ball. https://www.amazon.com/Cancer-Parasite-Disease-Everything-Alternative/dp/B0D3ZX5B72

  9. Microbes and Cancer: Viruses, Bacteria, and Parasites by José Antonio Gelpi Méndez. https://www.amazon.com/Microbes-cancer-Viruses-bacteria-parasites/dp/B0DGT62DD8

  10. Three Lectures on Unicellula Cancri: The Parasite of Cancer by Sir Henry Butlin. https://www.amazon.com/lectures-unicellula-cancri-parasite-cancer/dp/B012HZPC8U

  11. Cancer is Parasites! by Onyxe Alpina. https://www.amazon.com/Cancer-Parasites-Onyxe-Alpina-ebook/dp/B0DVCGHL4S

  12. The Cancer Connection: What They Don't Want You to Know About Parasites, Thoughts, and Healing by C. Rice. https://www.amazon.com/Cancer-Connection-Parasites-Thoughts-Healing-ebook/dp/B0D3ZX5B72
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