Fresh herbs and flowers in a white mortar and pestle.

Exploring Alternative Cancer Treatments

Feb 5, 2026
by Beata Havlickova

In this article, we will explore alternative treatments for cancer together. We’ll also look at how chemotherapy and radiation work, and why cancer sometimes returns after these treatments. Please remember, this is not medical advice—just considerations based on science.

How Chemotherapy and Radiation Work

When a patient is diagnosed with cancer by a conventional doctor, they are usually offered “traditional” cancer treatments, such as chemotherapy and radiation, depending on the stage of cancer and the location of the tumor.

Chemotherapy uses powerful drugs to destroy cancer cells by interfering with their division and growth. These drugs circulate through the bloodstream to reach cancer cells throughout the body. The rate at which cancer recurs after chemotherapy varies significantly depending on the type and stage of cancer, among other factors.

For example, up to 23% of breast cancer patients experience recurrence within the first five years after treatment ("Breast cancer", 2023). Brain tumors like glioblastoma have an almost 100% chance of recurrence, and ovarian cancer has an 85% recurrence rate ("Post-Cancer Chemotherapy", 2023).

While chemotherapy is effective in killing cancer cells, it also affects healthy cells that divide rapidly, such as those in bone marrow, skin, and the digestive system ("How chemotherapy", 2024).

Why Cancer Often Comes Back — and Why It Can Be More Aggressive

In healthy tissues, cells are not overly crowded and are kept in balance by normal growth controls. Chemotherapy and radiation damage both cancerous and healthy cells, which creates empty spaces in the tissue. In tumors, where cells are often tightly packed and poorly regulated, these newly created spaces can be interpreted by surviving cancer cells as a signal to grow, allowing the tumor to return and sometimes become more aggressive.

This mechanism has been explored in depth in an interesting study, which you can read here.

Based on research, both chemotherapy and radiotherapy share the same goal: to destroy cancerous cells. However, it is important to consider that both treatments are also extremely toxic to healthy human cells.

Chemotherapy usually involves a combination of drugs, such as antitumor antibiotics, antimetabolites, and alkylating agents.

There are a lot of side effects, such as fatigue, nerve damage, hair loss, skin changes, nerve and muscle problems, and bladder issues. It is very common that chemotherapy causes permanent organ damage. Cancer patients often die from exhaustion caused by what these drugs do to them.

"Curing is not profitable: treating is.....

Alternative Cancer Treatments

High Doses of Vitamin C

High doses of vitamin C (administered intravenously) behave as a pro-oxidant—selectively toxic to cancer cells while protecting healthy tissue.

How it works: High-dose vitamin C generates hydrogen peroxide around tumor cells. Cancer cells, which have weak antioxidant defenses, cannot break down this peroxide, leading to cellular damage and death. Healthy cells are protected because they contain catalase and glutathione, enzymes that efficiently remove hydrogen peroxide.

How It’s Given (Usual Clinical Method):
Usually, it is given three times a week, and the dose depends on the stage of cancer and the size of the tumor. Consulting an integrative health professional is recommended.

Where to Obtain High-Dose IV Vitamin C:

  • North America: Available at integrative cancer centers, naturopathic oncology clinics, and functional medicine practices.

  • Internationally: Commonly used in countries such as Germany, Austria, Switzerland, Mexico, and Japan.

Notable Clinics and Centers:

  • Integrative Center for Health – Fort Collins, Colorado

  • Hope4Cancer Center – Mexico

  • Cancer Center for Healing – Irvine, California

  • Wellbeing Medical Group – London, UK

  • Que Xi Wellness – International / Colombia

Hydrogen Peroxide

The principle of this therapy is that cancer cannot survive in an oxygen-rich environment. As part of the immune defense system, the body’s white blood cells protect us by producing hydrogen peroxide naturally. Hydrogen peroxide has antibacterial and antiviral properties, and when used therapeutically, it helps deliver oxygen to the tissues.

Usage:
There are several ways to deliver oxygen to the body using hydrogen peroxide. The first method is intravenous injection, using very low concentrations (typically 0.03%). With this method, oxygen enters the bloodstream directly.

Some people choose oral use of food-grade hydrogen peroxide, always highly diluted and taken under professional guidance. These approaches emphasize starting very cautiously, adjusting slowly based on individual tolerance, and following strict safety protocols. Store-bought or stabilized peroxide is never used, and treatment may begin with one drop a day and gradually increase the amount to 25 drops.

Parasite Cleansing

Dr. Hulda Clark believed parasites play a role in cancer and spent years researching this theory. Based on her work, she created parasite cleanse formulas using ingredients like green black walnut hull, cloves, and mimosa pudica, which she believed could target parasites at different life stages—eggs, larvae, and parasite adults.

Numerous studies on PubMed have reported a link between parasites and cancer. For example, antibodies against the parasite Trichinella spiralis have been found to react with proteins in breast and lung cancer cells. This occurs through molecular mimicry, where parasites and cancer cells share similar protein structures. Similar cross-reactions have also been observed in other cancers, including lung cancer, myeloma, and osteosarcoma.

In laboratory studies, cloves have demonstrated strong anti-parasitic activity, including killing liver fluke larvae within 24 hours, while mimosa pudica targets parasite eggs. Green black walnut hull has also shown strong anti-parasitic properties. Dr. Hulda Clark also invented an electronic device called a zapper, which delivers low-voltage electrical frequencies to the body.

She believed these frequencies could kill parasites, microbes, and viruses without harming human cells. According to her, once the parasites and toxins were eliminated using the zapper—along with detox and parasite cleanses—the body could stop cancer growth and begin healing.

B17 – The Seed That Battles Tumors

The idea of using Vitamin B17 to fight cancer dates back to the 1950s and gained significant popularity before it was largely dismissed by mainstream medicine. Vitamin B17, also known as amygdalin, is a natural compound found in apricot seeds, bitter almonds, and other fruit seeds.

How it works: Laetrile works by taking advantage of beta-glucosidase, an enzyme that is found in greater amounts in cancer cells. When Laetrile comes into contact with this enzyme, it splits into benzaldehyde and hydrogen cyanide, substances that can kill cancer cells while leaving healthy cells mostly unaffected, because they lack significant levels of the enzyme.

Many people once used Laetrile in Mexico, the U.S., and Europe as a cancer therapy. In 1977, the FDA banned it, raising concerns about cyanide toxicity and the lack of strong clinical evidence. However, some critics argue that the studies supporting the ban were questionable, and that because Laetrile could not be patented, it posed a potential threat to large pharmaceutical companies.

Mistletoe Extracts

Mistletoe extracts began to be used as a complementary cancer therapy in the early 1920s, introduced by the Austrian philosopher Rudolf Steiner and physician Ita Wegman as part of anthroposophic medicine.

Mistletoe extracts are among the most extensively researched complementary and alternative treatments for cancer patients.

How it works: Mistletoe extracts have the ability to damage tumor cells and protect the healthy material within cells. Mistletoe therapy can also significantly reduce side effects. As mentioned earlier, many cancer patients experience exhaustion from chemotherapy and radiotherapy, and mistletoe can greatly improve their quality of life.

The most common way to use mistletoe is through subcutaneous injection (under the skin), but it is also sometimes administered via intravenous therapy or directly injected into the tumor. It is usually given several times per week, with doses gradually increasing depending on the patient’s tolerance and response. This therapy is often combined with high doses of Vitamin C and ozone therapy.

Further Resources:

  • Cincinnati Integrative Oncology & Functional Medicine (USA)

  • Paracelsus Natural Family Health Center (Southern California, USA)

  • National Centre for Integrative Medicine (UK)

  • ZIO (Switzerland)

Water Fasting

Water fasting means consuming only water for a certain period of time, depending on the type and stage of cancer. This method should especially be done under medical supervision. There are water fasting centers where patients are monitored during the fasting period.

How it works: Fasting has been getting a lot of attention in cancer research because it affects how cells use energy and might help with treatment. One big part of this is autophagy, which basically means “self-eating.” When we fast, cells start breaking down and recycling damaged or extra parts to stay healthy and keep energy levels up.

Cancer cells usually have abnormal metabolism and rely heavily on glycolysis for energy, a behavior called the Warburg effect. Fasting can change this, pushing cancer cells to use mitochondria for energy instead. This shift increases reactive oxygen species (ROS), which, along with weaker antioxidant defenses, can make cancer cells more vulnerable to chemotherapy. Fasting may also reduce glucose uptake in cancer cells, counteracting the Warburg effect.

Further Resources:

  • A One Fasting Retreat – Southern California, USA

  • Sedona Wellness Retreat – Sedona, Arizona, USA

  • Balance For Life Retreat – Florida, USA

  • Fasting with Grace – United Kingdom


References 

Breast Cancer Recurrence
Post-Chemotherapy Recurrence
How Chemotherapy Works
Chemotherapy Toxicity & Side Effects
Warburg Effect
  • Vander Heiden, M. G., Cantley, L. C., & Thompson, C. B. (2009). Understanding the Warburg effect: The metabolic requirements of cell proliferation. Science, 324(5930), 1029–1033.
    https://doi.org/10.1126/science.1160809

Fasting, Autophagy, and Cancer
  • Longo, V. D., & Mattson, M. P. (2014). Fasting: Molecular mechanisms and clinical applications. Cell Metabolism, 19(2), 181–192.

  • Nencioni, A., et al. (2018). Fasting and cancer: Molecular mechanisms and clinical application. Nature Reviews Cancer, 18, 707–719.

Reactive Oxygen Species & Cancer Cells
  • Trachootham, D., Alexandre, J., & Huang, P. (2009). Targeting cancer cells by ROS-mediated mechanisms. Nature Reviews Drug Discovery, 8, 579–591.

High-Dose Vitamin C
  • Chen, Q., et al. (2005). Pharmacologic ascorbic acid concentrations selectively kill cancer cells. Proceedings of the National Academy of Sciences, 102(38), 13604–13609.

  • Carr, A. C., & Cook, J. (2018). Intravenous vitamin C for cancer therapy. Molecules, 23(5), 1092.

Mistletoe Therapy
  • Kienle, G. S., & Kiene, H. (2010). Review of clinical studies on mistletoe therapy. Evidence-Based Complementary and Alternative Medicine, 7(3), 345–356.

  • National Center for Complementary and Integrative Health (NCCIH). European mistletoe and cancer.
    https://www.nccih.nih.gov

Parasites and Cancer (Molecular Mimicry)
  • Harnett, W., & Harnett, M. M. (2017). Parasitic infections and cancer. Trends in Parasitology, 33(11), 843–857.

  • Radulescu, R. T. (2011). Molecular mimicry between parasites and cancer cells. Journal of Parasitology Research.

  • PubMed database. Parasites and cancer cross-reactivity.
    https://pubmed.ncbi.nlm.nih.gov


Share this