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How to Stop Avoidable Cancers

Your odds of inheriting a cancer-causing gene are under 0.3%, and only 25% to 50% of affected people ultimately die from it. The remaining 99.7% of cancers stem from poor nutrition, environmental pollution, unhealthy habits, medical treatments, viral infections, and other similar modifiable causes. By minimizing or eliminating most of them, you can lower your lifetime risk of developing cancer by 60% to 90%.

This claim isn’t wishful thinking or an empty promise. These risk-reduction figures are broadly supported by mainstream academic research, and you’ll find links to several of the most prominent studies at the end of this page.

And if you start now and the worst still happens, your chances of surviving most cancers will be many times better than those of people who ignore this article, because your body will be in much stronger shape to prevent metastasis and withstand chemo, radiation, or both.

Please note that the medical press and AI bots claim that genetic cancers represent 10% to 15% of all cancers. This claim isn’t true. Here are the actual probabilities of inheriting a genetic mutation:

And, as I mentioned in the lead, the actual cancer mortality from familial gene mutations ranges from 25% to 50%, which reduces deaths even more.

So don’t fall for that “10% to 15% genetic cancer” deception, and do nothing because “cancers are genetic” and inevitable. They are not because, based on the above factual information, it simply is not possible!

In fact, anyone’s lifetime risk of dying in a car accident (0.92%), from gun violence (0.93%), or drug overdose (1.52%) is five to ten times higher than from a familial cancer [link].

So What About Non-Genetic Cancers?

Every cell in your body renews constantly. This process is called “cellular turnover.” Some cells turn over in 24 hours, some in a year. The entire process is managed by “structural metabolism.”

Structural metabolism is the way your body builds and breaks down the materials that make up your cells, tissues, and organs. It takes the food you eat, such as proteins, carbohydrates, and fats, and breaks them down into simple building blocks.

Then your body uses those building blocks to rebuild important parts of itself, like muscles, skin, bones, and even DNA. When something in the body needs to be repaired or replaced, structural metabolism makes sure the right components are available and puts them together.

So structural metabolism is all about creating, maintaining, and recycling the building blocks you need to stay alive and healthy.

All non-genetic cancers trace back to the breakdown of structural metabolism because they arise from malignant cells, and all malignant cells arise when they can no longer maintain or repair themselves.

The probability of getting hit with cancer starts growing as you age:

So the real “scare zone” is between 55 and 84, when the risk is the highest. And since most solid tumors take three to six years to develop before diagnosis, you should start focusing on prevention well before you reach 45, and the risk goes up to 17.7% or higher.

That failure of structural metabolism comes from two primary causes: (1) poor immunity to detect and destroy abnormal cells when they occur, and (2) poor nutrition to build and maintain healthy ones.

Even more concerning, your immunity also depends on nutrition because all types of chronic inflammation related to nutrient excesses or deficiencies have a strong immunosuppressive effect.

If you accept, understand, and consciously reduce these nutritional risks, you can reduce your cancer risk to a small fraction of what it is for people who do nothing about it.

This article focuses on nutrients that sustain structural metabolism and have clear connections to the majority of preventable cancer risks. And this is what I know best.

All other risk factors, such as mechanical trauma, side effects of medications, viral or bacterial infections, X-ray radiation, heavy metals in water, fish, and dental amalgams, smoking, alcohol, unsafe sex, and bad luck, are already well known, and you don’t need my recommendations to tell you not to smoke, vape, abuse alcohol, avoid CT scans, wear seat belts, or use a condom with random hookup partners.

You also don’t need me to tell you to avoid ultraprocessed foods, hydrogenated oils, too much fiber, excessive carbohydrates, or artificial sugars, all of which are well-established risk factors for cancers. You already know all that from countless websites and YouTube videos on the subject.

You also don’t need me to tell you that you need to get a sufficient amount of animal protein and essential fatty acids to protect yourself from undernutrition or malnutrition, which are also well-established risk factors for all cancers.

But here is what you may not know:

Nutritional Deficiencies Behind Common Cancers

Nutrient / Class

Key Protective Function

Deficiency-Linked Cancers
(Evidence / Mechanism)

Vitamin D

Regulates cell differentiation and immune surveillance

Colon, breast, prostate, pancreatic — low serum D3 is consistently linked with higher incidence and worse outcomes

Folate (B9), B12, B6

Support DNA synthesis and methylation; prevent uracil misincorporation (DNA errors)

Colorectal, cervical, pancreatic — DNA instability and impaired repair under deficiency

Selenium

Cofactor in glutathione peroxidase; antioxidant defense

Prostate, liver, colorectal, thyroid — increased oxidative DNA damage under low intake

Zinc

DNA repair, immune function, and antioxidant enzymes

Esophageal, prostate, oral, cervical — impaired p53 activity and epithelial integrity

Magnesium

Cofactor for DNA polymerases and repair enzymes

Colon, pancreatic, liver — low Mg increases DNA replication errors and inflammation

Vitamin A / Retinoids

Regulate epithelial differentiation and immune function

Lung, bladder, skin — loss of epithelial protection under deficiency

Vitamin C

Neutralizes reactive oxygen species; regenerates vitamin E

Stomach, esophagus, lung — increased oxidative damage and nitrosamine activation

Vitamin E

Lipid antioxidant; protects membranes from peroxidation

Prostate, liver — imbalance increases oxidative injury to cell membranes

Iron

Both deficiency and overload matter — iron deficiency impairs immunity; overload generates free radicals

Colon, liver — chronic iron imbalance promotes oxidative DNA damage

Calcium

Binds bile acids and fatty acids in the colon; regulates proliferation

Colon — low calcium increases exposure to irritants and promotes hyperplasia

Iodine

Regulates thyroid and breast tissue differentiation

Thyroid, breast — chronic iodine deficiency associated with dysplasia and cystic change

Omega-3 fatty acids

Anti-inflammatory; regulates membrane signaling

Colon, breast, prostate — imbalance with omega-6 promotes inflammation-driven carcinogenesis

Antioxidant polyphenols (flavonoids)

Neutralize free radicals, modulate detox enzymes

Broad protection across epithelial cancers; absence increases mutagenic load

Unfortunately, there is zero chance of getting all of these micronutrients from any diet without hugely overeating, and that is why people around you, regardless of age, are dying right and left from all kinds of cancers that have nothing to do with their genes.

So if you want to reduce your risk of getting hit with cancer, you need to do only two things:

  1. Eliminate the dietary, medical, and lifestyle cancer triggers discussed above.

  2. Take the quality supplements that I recommend on my site, starting from now and until you stop breathing.

These two things will not only help you prevent most cancers but also diabetes, heart disease, strokes, liver and kidney failure, osteoporosis, chronic pain, dementia, Alzheimer’s and Parkinson’s diseases, and all other conditions that drain the lives and fortunes of your contemporaries.

If you ignore all of the above and get hit with a preventable cancer or any other of these conditions in the next five, ten, or fifteen years, don't blame bad luck for it because you’ve been warned.

On the other hand, if you take cancer and other risks seriously and follow my recommendations, you’ll be rewarded with the same ‘magic’ outcomes I enjoy at 71, and described here: Why Should You Trust Me?

Please note that I wrote “reduce your risk” rather than eliminate it. As I noted earlier, most cancers take three to six years to turn into solid tumors, and some scientists believe it may take even longer. You also need to account for other one-off cases, such as trauma, stress, and medical errors that accumulate with age.

Still, reducing the risk of cancer from 17.7% between 55 and 64, or from 29.2% between 65 and 74, to 3% to 5% is five to ten times better than a prayer.

And even if a random cancer still happens, as I wrote earlier, your chance of recovering from its treatments will be much higher, and you will be less likely to develop metastatic cancer, which in most cases is the result of immune system failure.

And the last question is:

— Konstantin, but even the healthiest people will eventually die from something!

Absolutely. At one point or another, the body stops rebuilding certain organs and gives up. Depending on your luck, this process usually starts between 95 and 115, and you die a relatively quick and peaceful death.

Until that moment, you’ll continue living a normal, independent life and pass away in your own bed — a much better outcome than spending the last five to ten years of your life warehoused in a nursing home because your family can no longer take care of you.

I Am Not Alone in Making These Claims

Across more than four decades of epidemiological research, estimates consistently show that up to 90% of cancers stem from modifiable lifestyle and environmental factors:

  1. Cancer is a Preventable Disease that Requires Major Lifestyle Changes

    Only 5–10% of all cancer cases can be attributed to genetic defects, whereas the remaining 90–95% are due to environment and lifestyle factors.

    Pharmaceutical Research 25(9): 2097–2116 (2008) [link].

  2. Substantial contribution of extrinsic risk factors to cancer development

    Collectively, we conclude that cancer risk is heavily influenced by extrinsic factors. These results are important for strategizing cancer prevention, research and public health.

    Nature 529 (7584): 43–47 (2016) [link]

  3. The importance of extrinsic factors in the development of cancers

    We reported that extrinsic risk factors contribute substantially (more than 70–90%) to most common cancers. This finding promotes further research into the causes of cancer and how they could be prevented.

    Molecular & Cellular Oncology 3(3): e1143079 (2016) [link].

  4. Preventability of cancer: the relative contributions of biologic and social and physical environmental determinants of cancer mortality

    Specifically, achievable changes in the preventable causes of cancer now account for an estimated more than 60% of all cancer cases in the United States.

    Annual Review of Public Health. 2012 Apr:33:137-56 [link].

Author’s note

One of my associates from my first job in the United States became an accidental multimillionaire — an ordinary man who made tens of millions of dollars in his late forties by helping party bosses from the former Soviet Union move their illicit fortunes abroad.

A few years into my journey with functional nutrition, I asked him to fund medical research into longevity and cancer prevention. He laughed and told me that he had all the money in the world to pay for the best doctors and that he had no need for my research.;

Guess what? Five years later, he died from brain cancer that developed after treatment for non-metastatic colon cancer a few years earlier.

Could he still be alive? I believe he could, because when wealthy patients go to the top medical clinics, they usually receive the most aggressive treatments money can buy, and not all of them survive it because aggressive chemotherapy, radiation, and experimental drugs aimed at one cancer may increase the risk of a secondary one years later.

Please don’t repeat his mistake by expecting that your medical insurance and savings will help you win the fight against cancer. It’s far more reliable not to get one in the first place, or, at the very least, to keep your body in good enough shape to survive it.

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