Curcumin And Cancer

Many clinicians give their attention to curcumin and cancer. Physicians may use curcumin not as a primary treatment, but may add it as an adjunct to other cancer treatments. Curcumin is the effective ingredient of the old Indian spice, turmeric. The question is how effective curcumin is against cancer? Is it safe to use? What is the evidence?

Frequency of cancer

According to the American Cancer Society there will be 1,688,780 new cancer cases in 2017 and 600,920 cancer deaths will occur in the US.

Causes of cancer

There are many different causes for cancer. Hidden in the many causes may be the possible solution to new cures.

Lack of exercise

A lack of exercise may contribute to the development of cancer because of a lack of tissue circulation. And exercise will help to support your normal cell metabolism (explained below). Wrong foods may or may not have a contributory role regarding cancer development (a high sugar and starch diet causing insulin response, which changes the metabolism). The Mediterranean diet is an anti-inflammatory diet and has been credited to prevent a lot of cancers.


Chemicals, called carcinogens can cause cancer. But oncoviruses can also cause it. Genetic mutations can also cause cancer. That’s why it tends to run more often in certain cancer prone families. But Warburg has researched the metabolism of cancer almost 100 years ago, even got the Nobel price for it in 1931 and yet the elusive cancer cure has not materialized yet.

DNA mutations, tumor suppressor genes metabolic difference between cancer cells and normal cells

Following Warburg’s research Watson/Crick detected DNA in our cells. Ever since geneticists found this fascinating by it. They also found that a cancer suppressive gene, regulated by the p53 gene could develop mutations and then cancer would occur: tumor suppressor genes. For decades this was the “in” thing. But in the last 5 to 10 years there is a revitalization of the original Warburg idea that one should concentrate on the metabolic differences between cancer cells and normal cells. This is starting to show some timid results. Cancer cells are more acidic from lactic acid and burn glucose for energy without requiring oxygen (anaerobic pathway), while normal cells burn glucose in the aerobic pathway in the mitochondria. This difference is important. Certain manipulations are more likely to kill cancer cells.

Cryoablation therapy for prostate cancer

Take cryoablation therapy for prostate cancer. Cryosurgery for prostate cancer. A local deep freeze method like cryoablation therapy kills the more vulnerable cancer cells preferentially leaving  the normal cells intact. Another example is photodynamic therapy for cancer that has been used for lung cancer and esophageal cancer.  This method may be a lot more universally applicable than believed so far. The physician injects a photosensitized dye, which is normal cells eliminate, but cancer cells retain.  Next the physician uses a laser beam that kills the cancer cells preferentially by absorbing the specific laser wavelength that is specific for the dye.

Consumer driven cancer therapies

Nobody knows which way cancer research is going. But I think that consumers will drive this: consumers want better cures. When new methods have better cure rates, consumers will demand treatments with these. Less effective methods will become history. I think that researchers will revitalize Warburg’s ideas and develop new therapies from this as I indicated.

Curcumin and cancer: malignant conversion

There are three development stages for any cancer to develop.

Originally cancer researchers used skin cancers a model. Later they could confirm that initiation, promotion and progression also were present with the development of cervical cancer. The name for this is “malignant conversion”. This needs to happen before a normal cell transforms into a cancer cell. Here are the three stages.

  • Initiation
  • Promotion
  • Progression

This is important to know in the context of curcumin. Basic research has shown that curcumin interferes with all of these stages of tumor development, both in terms of prevention as well as in terms of being curative. Here is a link that points out the complex multiple steps of cancer growth that curcumin interferes with.

Multiple actions of curcumin

As can be seen from it, curcumin interferes with the initiation of multiple cancers, reduces inflammation, and interferes with angiogenesis and this reduces the amount of metastases that can form. But curcumin further interferes with proliferation of cancer cells, reduces invasion, prevents resistance and improves survival. The underlying molecular and genetic reasons for curcumin’s actions are all contained in that link.

Curcumin and cancer: research in tissue culture and animal experiments

When it comes to cancer research, you usually hear about in vitro culture experiments and animal experiments. This type of research is used to establish that there is an anti-cancer effect, that it is reproducible and non-toxic. The September issue of the 2016 Life Extension Magazine reviewed this in detail. It was entitled “How Curcumin Targets Cancer”.

But as a former clinician I am more interested in seeing cancer patients cured. This has to be verified by clinical trials first. When I looked through for objective evidence of the effects of curcumin in cancer patients, this type of information was more difficult to find. But in the following there are a number of examples that I did find.

Curcumin and cancer: clinical trials

1. Reduction of tumor necrosis factor-alpha

A 2016 meta-analysis of eight randomized studies investigated the effect of curcumin in patients with various inflammatory diseases including cancer. They found that curcumin consistently reduced tumor necrosis factor-alpha. In cancer patients this inflammatory substance is responsible for further cancer growth and developments of metastases.

2. Poor bioavailability of curcumin

A study with increasing amounts of curcumin showed poor absorption of curcumin into the blood. In this study researchers were giving dosages between 500 mg up to 12,000 mg per day of curcumin. 500 mg to 8000 mg of curcumin did not result in any positive serum level of curcumin. Only the higher dosages, 10,000 and 12,000 mg of curcumin, caused positive curcumin levels in the blood.  Patients have to take higher amounts of curcumin to have a clinical response. Toxicity studies were done when using higher amounts of curcumin. The results showed taht it was safe and patients tolerated high dose curcumin fairly well.

3. Precancerous colonic polyps reduced in number and size

A smaller study consisted of 5 subjects with familial adenomatous polyposis (FAP). This is an autosomal-dominant disorder where hundreds of colorectal adenomas develop in the lining of the colon. From these colorectal cancer can arise. Five patients received 480 mg of curcumin and 20 mg quercetin orally three times per day. After 6 months the number of polyps and the size had reduced by 60.4%.

4. Premalignant colonic lesions suppressed by curcumin

44 eligible smoker subjects received a baseline colonoscopy where aberrant crypt foci (ACF) were determined. ACI are the very first focal areas in the colon that lead to colon cancer. Smokers have more of these lesions, which was the reason that researchers chose smoker subjects for this trial. The patients received either a supplement of 2000 mg of curcumin or 4000 mg of curcumin for 30 days. These are fairly high doses. They were used to overcome the poor absorption of curcumin. Colonoscopies were done again after one month of curcumin supplementation. 41 subjects completed the study. In the 4000 mg curcumin group the ACF numbers were reduced significantly by 40% compared to the 2000 mg group, which showed no reduction. The 4000 mg group showed a 5-fold increase of curcumin blood levels compared to baseline. The 2000 mg group had no change in blood levels.

5. Reduction of radiation dermatitis with radiation therapy in breast cancer patients

30 breast cancer patients were divided into an experimental group and a placebo group. All of them had a mastectomy first and subsequently radiation therapy. The experimental group received 6 grams (2 grams three times per day) of curcumin during the time of radiotherapy following mastectomy. The experimental group had  significantly reduced radiation dermatitis following radiotherapy when compared to the placebo group. Only 28.6% had significant radiation dermatitis in the curcumin group versus 87.5% in the placebo group.

6. Chronic multiple myeloma patients

An Australian study involving chronic multiple myeloma patients found that curcumin at 4 Grams per day and even more so at 8 Grams per day stabilized the disease and improved kidney function.

7. Descriptive studies

Descriptive studies investigating the effect of various doses of curcumin have been done regarding breast cancer,  and advanced pancreatic cancer. But these clinical trials were all rather small.

8. Chemoprevention of cancer

A phase II trial enrolled 21 patients with end-stage pancreatic cancer patients. The only FDA approved treatments for this are gemcitabine and erlotinib, but this would normally only lead to clinical responses in less than10% of patients. In this study the investigators used curcumin to enhance the anti-tumor response of either gemcitabine or erlotinib. The study summary stated: “Oral curcumin is well tolerated and, despite its limited absorption, has biological activity in some patients with pancreatic cancer.” 2 of the 21 patients had stable disease for more than 18 months; one of the 21 patients had a brief tumor regression of 78%, but then relapsed and died.

9. Chemoprevention of prostate cancer

Chemoprevention of prostate cancer is discussed in this publication: There was specific reference made to prevention of prostate cancer and the opinion of the researchers was: “At present, there is no convincing clinical proof or evidence that the cited phytochemicals might be used in an attempt to cure cancer of the prostate.”

Curcumin And Cancer

Curcumin And Cancer


For years there have been reports to indicate that curcumin was a promising natural supplement that can improve cancer survival. Many clinical trials regarding the effects of curcumin on colorectal cancer, pancreas cancer, prostate cancer, breast cancer, ovarian cancer and others had a poor design. But on closer look the hype seems to come mostly from in vitro studies (tissue culture experiments) or from animal studies. Clinicians, however, demand well-constructed randomized clinical trials with clear research objectives before they can accept a new agent like curcumin to be effective. These clinical trials are missing! Instead there are many in-between trials of questionable quality as listed above.

Problems with bioavailability of curcumin

There have been problems of bioavailability due to poor absorption of curcumin. Pushing the dosage to 6000 to 8000 mg per day succeeded in overcoming this limitation to a certain extent. But a significant percentage of people (around 30%) suffered from abdominal cramps and nausea and had to discontinue these high doses of curcumin. Researchers have developed newer curcumin compounds, but at this point it is unknown what the bioequivalent dosage is of these newer curcumin agents in comparison to the original curcumin dosages.

It is quite possible that researchers will one day design clinical trials  that will bring better news on survival rates of various cancer patients involving curcumin therapy. But in my opinion right now it is not yet prime time for curcumin!

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Overuse Of Supplements Can Create Health Risks

The Dietary Supplement Health And Education Act of 1994 made it easier for people to acquire supplements and vitamins from health food stores. But since then there has been a proliferation of various products that are sold as supplements and not as drugs. It may give you the impression that all supplements are harmless, but this is not so. There are some supplements like vitamin A where you need to watch that you are not inadvertently overdosing, as toxicity is a problem; calcium supplements are also potentially toxic, if overdone. And amino acid supplements (protein supplements) can lead to an overdose of brain hormones. Here is a sample of some of the supplements that I would want you to watch.

1.Vitamin A toxicity:

Vitamin A is essential for normal night vision, for red blood cell production in the bone marrow and for the immune system. Here is a brief review about its metabolism. But while small amounts are beneficial for the body, high doses are toxic. In the 19th century the Arctic explorer Elisha Kane reported that consumption of polar bear liver caused severe headaches, drowsiness, irritability and vomiting within a few hours of ingesting it.

It is now known to be due to “pseudotumor cerebri”, a condition that mimics a brain tumor, but is caused by an acute overdose of vitamin A contained in liver (Ref. 1).

In the US where people eat enough meat, fish and dairy products, there is no overt vitamin A deficiency. Read this link to avoid overdosing with vitamin A in multiple supplements.

Overuse Of Supplements Can Create Health Risks

Overuse Of Supplements Can Create Health Risks

2. Vitamin C:

Vitamin C is an important antioxidant vitamin and is needed as a co-factor for many metabolic reactions. It is participating in the production of collagen and connective tissues, helps with fatty acid transport and is necessary for the synthesis of neurotransmitters in the brain (Ref.2). The lack of vitamin C is known as scurvy; symptoms include bleeding gums from fragile capillaries, delay in wound healing and impaired bone metabolism. Although in the earlier research it was hoped that vitamin C would prevent colds and cure cancer, more recent reevaluations found that it does not prevent you from getting colds, but it accelerates the recovery from colds by cutting down the recovery time by as much as 25 to 30% and it also does have some cancer protective effects (Ref.2). Higher doses seem to be more beneficial, but 1500 mg per day seems to now be the consensus of a reasonable upper dose limit per day.

What about kidney stones? Several studies in the past have warned about vitamin C being broken down in some people into calcium oxalate kidney stones. Here is a brief review of the literature with regard to kidney stone formation. A study regarding the DASH diet, which is used for people with high blood pressure, showed that the incidence of kidney stones is almost half for both men and women compared to controls on a normal North American diet.

There has been a concern among the medical community that vitamin C as a supplement would increase kidney stones (oxalate stones). However a 2014 study showed that when both vitamin C and vitamin E are taken as supplements, the kidney stone formation goes down.

Many inhabitants of industrialized countries including the population in the US and other countries are magnesium deficient and this can be a major factor for forming calcium oxalate stones. But it has been known for decades that those who develop kidney stones excrete more oxalates in their urine (so-called “oxalate excreters”). Here is a 1996 study that measured this in detail.

If you are taking in a lot of green smoothies from green leaf vegetables (spinach, kale, Swiss chard) that are high in water-soluble vitamins, you may not require any vitamin C supplements. In other words, think about what else you do and eat and add it up, so you do not exceed a total of 1500 mg to 2000 mg of vitamin C per day.

If you are taking in a lot of green smoothies from green leaf vegetables (spinach, kale, Swiss chard) that are high in water-soluble vitamins, you may not require any vitamin C supplements. In other words, think about what else you do and eat and add it up, so you do not exceed a total of 1500 mg of vitamin C per day.

3. Calcium supplements:

Calcium is a key mineral in the body, important not only for healthy bone structure, but also to balance the electrolytes within the blood, in the extra cellular fluid space and within our cells. If calcium is low, the brain is more prone to seizures and the heart can produce dangerously irregular heart beats. We definitely need a balance of calcium! Because calcium is so central to our wellbeing, several factors work together to keep our calcium levels stable: the kidneys, the thyroid, the parathyroid glands, the adrenal glands, the bone as a reservoir of calcium, the gastrointestinal tract for absorption and a good, balanced nutrition. The chapter on “Vitamins and Minerals” of Ref.3 points out that 4000 mg of calcium per day definitely causes toxicity (hypercalcemia and milk-alkali syndrome).

Absorption is dose dependent meaning that only 500mg of calcium carbonate is absorbed at a time. Vitamin D3 deficiency leads to reduced calcium absorption. But with high doses of vitamin D3, which is now often recommended, more calcium is absorbed, so it is important not to take too many calcium supplements. They can also interfere with iron and zinc absorption and when more than 2600 mg of calcium is taken magnesium absorption is inhibited as well. Calcium can interfere with thyroid hormone supplements (take 4 hours apart) and may reduce the effect of calcium channel blockers, drugs used for angina or high blood pressure.  There is a balance between calcium stored in bone (99% of total body calcium) and the circulating portion of 1% of calcium in the blood. The parathyroid hormone and calcitonin are also involved in this balance. Hypercalcemia is the condition when calcium is too high. Common causes are the improper use of diuretics (thiazide diuretics), overuse of calcium carbonate supplementation (often for osteoporosis) and overuse of vitamin D3, which increases the absorption of calcium (Ref.3). See your family doctor for blood tests and advice what to do in your case.

4. High protein diets and protein (amino acid) supplements:

Many protein supplements are available through health food stores and vitamin stores. The advertisers often state that our food would be substandard and these supplements would help “to regain strength”.  Athletes hope to get stronger muscles from amino acid supplements because they are the building block for protein that builds up muscles. Fact is that no supplements are needed when you eat balanced meals containing meat and fish and you exercise regularly. The protein in your food will be broken down into amino acids and your body metabolizes this into your own protein. Here is a website that reviews the subject of supplementation with amino acids.

It is clear from this that this is a rather complex problem. Vegetarians may require these supplements to replace protein for the missing meat intake. But the rest of us have to guard ourselves against overdosing with too much meat, amino acids supplements or protein supplements.

High protein diets (Atkins diet and others) have been glorified as being helpful for weight loss. But the long-term effect of such diets lead to chronic kidney damage in those with diabetes and high blood pressure as evidenced by protein leakage in the urine (called ”microalbuminuria”, Ref.4).

According to this reference the average protein requirement is 0.6 g of protein/kg body weight/day. This text comments that this would be compatible with the World Health Organization (WHO) recommendation for protein intake. For a person weighing 140 lbs. this translates into about 50 grams of protein per day. Here is a website that explains the upper limit of meat intake with the example of an 8-ounce portion of top sirloin steak.

Protein supplements have become very popular, but you need to be careful when you supplement with this that you do not get an overdose of amino acids. Amino acid profiling has been useful for physicians and naturopaths to examine deficiencies in children or adults checking for essential amino acids in the blood.  However, in the industrialized countries such as the US, Canada and others the larger concern is now the overuse of meat in our food (e.g. Atkins-like diets) and protein supplements. The same amino acid screening tests will find several of the ingredients (amino acids) in these protein supplements to be too high. In this case it is imperative to stop the protein supplements to prevent amino acid toxicity.

This study warns that not enough is known how performance-enhancing supplements affect the metabolism of the body. There are discussions that perhaps upper limits for amino acid supplements need to be established:

5. Creatine supplementation:

Other supplements of concern are creatine supplementation in the sports-minded and in athletes who want to build up muscle mass. Creatine is synthesized by the liver form amino acids derived from fish and meat that is broken down into the amino acids arginine, glycine and methionine. So, there is no shortage, but athletes and sports minded people want to push the envelope and take in additional creatine that helps their energy metabolism (ATP production) in the muscles to increase their performance (Ref. 5) Creatine is vital for the brain, the heart, the kidneys and the eyes (retina). It is a buffer for lactic acid during anaerobic exercise. Some of the side effects are muscle cramps, diarrhea, fluid retention and kidney failure when exposed to high heat and dehydration. There are no long-term studies of the use of creatine supplements, yet some athletes are taking them long-term.


We are tempted by various merchants and infomercials to take in more and more vitamins and supplements including protein and amino acid supplements. But when you eat well-balanced meals, preferably organic food, you already have enough protein, nutrients, calcium, vitamin C and vitamin A contained in food. So you may be inadvertently putting a strain on your kidneys that have to eliminate whatever it is that is too much for your body to take. Your liver may also be quietly working overtime as well. Your brain gets overactive by the surplus of amino acids that are utilized by the brain to make brain hormones. Your system can only take so much; at one point a surplus of supplements will make you sick! So, be vigilant and think about what your regular food intake already provides. Do you really need that supplement or do you already get enough from your food intake? Are you falling for some marketing scheme? Remember, you are the steward of your own health!


1.Shannon: Chapter 69: The Vitamins. Haddad and Winchester’s Clinical Management of Poisoning and Drug Overdose, 4th ed.© 2007 Saunders

2. Mandell: “Water-Soluble Vitamins”. Mandell, Douglas, and Bennett’s Principles and Practice of Infectious Diseases, 7th ed. © 2009 Churchill Livingstone

3. Rakel: Chapter “Disturbances in Calcium and Phosphate” and chapter entitled “Vitamins and Minerals”. Textbook of Family Medicine, 8th ed. © 2011 Saunders

4. “High Dietary Protein Intake” in “Taal: Brenner and Rector’s The Kidney”, 9th ed. © 2011 Saunders

5. DeLee: DeLee and Drez’s Orthopaedic Sports Medicine, 3rd ed. © 2009 Saunders

Last edited April 30, 2014

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Live Your Best Life

While attending the 21st Annual World Congress on Anti-Aging, Regenerative & Aesthetic Medicine the audience was treated to a magnificent speech by the keynote speaker, who you all know from the TV show  “The Doctors”, namely the ER-doctor, Dr. Travis Stork.

He said that there are 4 main ingredients that are necessary to live the “best of your life”.

1. Healthy living starts in the kitchen

You want to make sure that you leave out unhealthy foods. This includes that you also need to cut out sugar. Be aware how important protein is, so you need protein with each meal. This includes legumes, fish, chicken, turkey meat and others. Saturated fat is essential, can improve your health and makes you feel full, but stay away from unhealthy, sugary snacks.

Snacks do not harm your health, but they must be healthy ones like nuts three times per day. To include nuts three times per day lowers your risk of dying by 39% and your rate of heart attacks by 52%.

In order to prove a point about cutting out junk foods, the TV producer convinced Dr. Stork to go on a junk food diet for 7 days to see what would happen. He gained 8 pounds after 6 days, his mood was getting subdued and he started to look forward to his next meal as if he was addicted to the junk foods. But suddenly he could not take it anymore and was concerned about getting sick from this experiment (rightfully so). He told his producer that he had to stop this experiment. He explained that most of his fat accumulation was happening in the abdominal area (visceral fat) and he showed a video that illustrated this further. He explained that the visceral fat is metabolically very active, produces inflammatory agents and causes changes in the heart vessels that eventually lead to heart attacks and strokes.

Live Your Best Life

Live Your Best Life

2. “I need you to start working out!”

We were designed to get moving. Our ancestors were gatherers and hunters, so they were constantly on the move. Our genetics have not changed, but our lifestyle habits are far removed: the sessile habits are not suiting us well healthwise. Translated into modern life this means: sit less; do gardening; use pacing as a technique to move when you are on the phone. Take the stairs instead of the elevator; walk (a minimum of 30 minutes three times per week). Personally, I like to add that our body never takes a holiday, so I think we should exercise 7 days per week.

3. Mind and body are connected

Stress can ruin your health. Happy people are 50% less likely to die prematurely. Laughter heals. A funny video was shared with the audience where a parent ripped a piece of paper into smaller and smaller pieces and the toddler watched with glee and laughed every time when the paper was ripped into two smaller parts. A service dog can be a great companion for disabled individuals, but pets have a positive impact on the health of any individual. They can be of help to reduce stress.

It is known that mind and body are connected. As a result, if your mind and body are balanced, your hormones get balanced and this helps to keep your metabolism in check. If your metabolism is balanced, you will avoid getting diseases like heart attacks, strokes, arthritis, and even cancer.

4. Make sure you get enough sleep

40% of people do not get enough sleep. You can change your sleep behavior. How do you do it?

a)    Have a consistent bedtime/waking time. Set your alarm clock to the same time every morning. Aim for 7 to 8 hours of sleep per night.

b)    Avoid late night caffeine as it prevents a good night’s sleep.

c)    Get active throughout the day; this will prepare you to get tired in the evening.

d)    Towards the end of the day have a to-do-list ready for the next day. This prevents tossing and turning and thinking about what you want to do the following day. You know that it is all written down on the list, so you can relax and get to sleep.

e)    No bright lights in the bedroom, no bright alarm clocks, no control lights of electronic gadgets and have light-blocking window coverings in place. Do not have a TV in the bedroom, also no cell phone, and stay away from the computer for 1 hour before your bedtime.

After you re-programmed your body and mind to a regular sleep rhythm, you automatically get tired when you should and your hormones and body chemistry find a new balance, which contributes to good health.

Dr. Stork stated that we all need to prevent disease. We do this by making health our hobby. There is no need to be obsessed about it. “Just live your best life!”


I summarized Dr. Stork’s presentation from the anti-aging conference, as it struck me how simple it really is to live a healthier life. If we all follow these simple steps, we are a long way into anti-aging, because it gives us the footing we need to further refine it from there.

In many previous blogs I have mentioned these 4 factors that are needed to slow down aging. However, there are other factors that may be needed like bioidentical hormone replacement when there are hormone deficiencies; detoxification, if there is evidence of toxicity; and vitamins and other supplements. Anti-inflammatory and antioxidant vitamins and supplements like CoQ10, vitamin D3 and omega3-fatty acid/DHA supplements are needed to keep LDL from getting oxidized as this is the reason why people die of heart attacks and strokes and get cancer.

I have recently written a book entitled “A Survivor’s Guide To Successful Aging” (being published at in March 2014), which explains the science behind why it is important to cut out sugar and starch. Sugar and starchy foods are the foods that oxidize LDL cholesterol, and ultimately it is the oxidized LDL cholesterol that causes deaths from heart attacks and strokes. In this text I have explained how proper nutrition, exercise, hormone rebalancing, supplements and lifestyle changes will allow you to prevent the major illnesses from setting in thus extending your life expectancy considerably. Included in the book is a chapter (written by my wife, Christina Schilling) that contains 7 days of recipes for breakfasts, lunches, dinners and desserts as well as snacks.

Last edited Oct. 25, 2014


The Super Powers Of Vitamin D

Originally, when vitamin D was found to be the missing ingredient in preventing rickets in growing children the recommended daily allowance (RDA) to prevent rickets was found to be 400 IU of vitamin D. The active metabolite has been identified as vitamin D3 for which the body has receptors on all vital organs (heart, brain, bones, kidneys, liver). In recent years new insights have been gained as it turns out that the RDA’s were set much too low for many diseases that can develop when vitamin D intake is too low, particularly in the aging population. Higher doses of vitamin D3 in the range of 800 to 1000 IU per day have been shown to prevent osteoporosis, falls and fractures in older adults and in nursing home populations. But the immune system of everybody is dependent on higher doses of vitamin D3. Recently (Dec. 12 to 15, 2013) I attended a lecture at the A4M conference in Las Vegas where Dr. Eisenstein reviewed the latest on vitamin D3. It is now known that 2/3 of the US population is deficient for vitamin D as measured by blood tests (less than 25 ng/ml).  The standard test is the 25-hydroxy-vitamin D level (abbreviated as 25(OH)D level). It is now known that you require at least a level of more than 40 to 60 ng/ml of 25(OH)D as measured in the US, which translates to more than 100 to 150 nmol/L measured in metric units in other countries, to prevent cancer.

The Super Powers Of Vitamin D

The Super Powers Of Vitamin D

Metabolism of vitamin D3

90% of the vitamin D3 that we need comes from exposure to sunlight, which transforms a cholesterol metabolite (7-dehydrocholesterol) into the vitamin D precursor (vitamin D3 or cholecalciferol). This is what we absorb from naturally occurring fish oil and oily fish, but otherwise this does not naturally occur in foodstuffs (Ref. 1). Dr. Eisenstein pointed out that it is well known that people living north of the 37th degree latitude lack vitamin D3 because of a lack of sun exposure, particularly in the winter season. People south of the 37th degree latitude have enough sun exposure, but wherever you live, it is advisable to have your vitamin D3 level measured (as 25(OH)D level). If you do not eat enough fish or fish oil, the levels likely are too low as is the case for 2/3 of the US population. Vitamin D3 supplements will have to be taken by those whose levels are too low. Vitamin D3 is further metabolized by the liver and then by the kidneys into the active vitamin D compound, called 1,25(OH)2D3 (which is called “calcitriol”). The main effect of calcitriol is to absorb calcium and phosphate from the intestine into the blood stream. Together with vitamin K2 as explained in a prior blog these minerals are then taken up by the bone to prevent osteoporosis or rickets in the growing child. What has not been known for a long time is that vitamin D3 is also necessary for normal cell metabolism by most of your body cells, but particularly by the vital organs like the brain, the heart, the kidneys, the liver, the immune system and the bone. However, doses of 5000 IU to 10,000 IU of vitamin D3 capsules per day are required for optimal vitamin D3 health. This will lead to levels of below 200 ng/ml of 25(OH)D levels, which have been proven to be safe. According to Dr. Eisenstein no toxicity has been found below 30,000 IU of vitamin D3 per day, but based on other authors a dose of 10,000IU should be adequate for most people. Strangely enough colored people also have to take vitamin D3 supplements as their the higher melanin pigment in the skin filters out UV light so effectively that their 25(OH)D level can be low. Always err on the cautious side and have your vitamin D3 blood level taken.

Vitamin D3 has a characteristic stereotactic configuration (cis-triene structure), which allows it to bind free radicals and function as an antioxidant (Ref.2).

What are some of the clinical effects of vitamin D3?

1. Vitamin D3 has diverse effects on organs systems as Dr. Eisenstein summarized: vitamin D3 lifts depression and has been found to be of particular value for drug resistant depression. Take 5000 to 10,000 IU of vitamin D3 per day.

2. Muscle power increases with vitamin D3, particularly in those who work out regularly.

3. Many fertility clinics pay attention to vitamin D3 levels, as the higher the blood levels of vitamin D3 in a man, the faster this sperms move! And the more vitamin D3 she has on board, the better she ovulates. The end result is a higher pregnancy success rate when both partners take 5000 to 10,000 IU of vitamin D3 per day

4. Also, if a woman takes vitamin D3 during her pregnancy, the first set of teeth in the offspring will have fewer cavities.

5. Brain development in autistic children is much improved with vitamin D3 in higher doses. This needs to be combined with detoxification methods and supervised by one of the DAN physicians.

6.Chronic pain typically improves when vitamin D3 deficiency, which almost always is present in patients with chronic pain, is treated with vitamin D3 supplementation.

7. To prevent flus and colds and other infectious diseases, take higher doses of vitamin D3. When you come down with a flu, it is safe to increase your daily vitamin D3 intake to 30,000 IU of vitamin D3 for a few days until your symptoms improve, then resume your maintenance dose of 5000 IU to 10,000 IU per day.  This year’s dominant flu is the type A, subtype H1N1 – also known as the swine flu. Children should get 50% of the dose regimen detailed for adults when they develop a flu (for children: 15,000IU for three to five days , with tapering to a maintenance dose of 2500 to 5000 IU until blood levels of 25(OH)D are available). Here is a website of Dr. Cannell where he discusses dosages as well.

8. Asthmatic patients do better with vitamin D3 supplements requiring less maintenance anti-asthmatic medicine to keep them balanced with regard to their airways.

9. Chronic low vitamin D3 levels cause brain damage including Alzheimer’s disease. In this context it is important to know that the enzymatic conversion in the liver and kidneys slow down as we age requiring higher doses in older patients. This may have been the reason for the confusion about relatively low doses of 400 IU of vitamin D3 preventing rickets in children versus the need of vitamin D3 in middle aged and older patients where much higher doses are required as already explained.

10. High blood pressure is linked to vitamin D3 deficiency and it is better manageable with medication when vitamin D3 levels are normalized.

11. Live longer with vitamin D3. How is this possible, you might ask: the answer has been found in the telomeres, the shoelace like structures at the end of the DNA strand of each cell. Vitamin D3 lengthens the telomeres and promotes telomere repair; this is associated with a longer life span. Centenarians have longer telomeres. You can measure telomere length, but it is a pricey test, which is not for everyone, contrary to supplementation with vitamin D3 that should be taken by everyone!

12. As already indicated, vitamin D3 strengthens the immune system, but it also modulates the inflammatory response from muscle damage, so athletes can perform better. Patients with multiple sclerosis will improve as it slows down the inflammatory process. But other inflammatory diseases like arthritis, inflammatory bowel disease and even cancer will respond favorably to higher doses of vitamin D3 (20,000 to 30,000 IU of vitamin D3 in these cases). This is information that has not yet percolated into mainstream medicine, but will do so in the next few years (or decades?).

13. Higher percentages of cardiovascular disease are found in patients who have lower than 15 ng/ml  25-Hydroxy- vitamin D3 levels in their blood meaning that vitamin D3 supplementation prevents heart disease (Ref.3).

What are toxic vitamin D levels?

What is known about the safety of vitamin D3, particularly the higher vitamin D3 doses? First, it is wise to have your 25(OH)D blood levels taken from time to time. If any of these levels exceed 200 ng/ml it would be prudent to reduce the vitamin D dose or stop supplementation for a while. Otherwise it has been difficult to establish a toxic range.

This website claims that 40,000 IU of vitamin D3 or more would lead to toxic levels where the blood calcium levels would be increased, which can be measured as hypercalcemia. However, another study done in 2007 showed in MS patients that took 40,000 IU per day and that led to a blood level of 400 ng/ml of 25(OH)D did not lead to increased calcium levels and did not lead to hypercalciuria (too much calcium in the urine). So, all of the papers that either indicated to the public that it would be unsafe or unnecessary to take vitamin D3 seem to have other agendas than communicating the truth. Had it been true that calcium would be released from the bones or calcium were absorbed too much from the gut, this would have caused calcification of the bones, soft tissues, heart and kidneys. Also, kidney stones would have developed. However, a low calcium diet combined with corticosteroid drugs usually leads to a full recovery within a month. Interesting that all of the dire predictions regarding toxic vitamin D3 levels did not materialize. Here is another website discussing vitamin D3 dosing.

I talked to a participant of the conference (who has a fellowship degree of the A4M) about what is really known about vitamin D3 toxicity. He told me that there has been an unintentional overdose where a compounding pharmacy made a mistake, so that a patient accidentally received a dosage of 500,000 Units of vitamin D3 per day for a full three months, before the mistake was uncovered. The patient felt sluggish, but did not have any other symptoms. He was told to stop the vitamin D3 compound. He had an uneventful recovery with no detrimental effects. At this point no overdose of vitamin D3 has been established.


Vitamin D3 is a vital supplement that has been shown to prevent not only rickets in children, but also depression, MS, infections and even many cancers (Ref. 4). As usual there will be many critiques that doubt the validity of the above statements. But I have found that all of these effects described above were confirmed in several sources of various medical information. Keep in mind that negative rumours have a tendency to linger on for years.

More information on vitamin D3 for prevention of osteoporosis and hardening of arteries:

Vitamin D3 deficiency can cause pancreatic cancer:


1. McPherson: Henry’s Clinical Diagnosis and Management by Laboratory Methods, 22nd ed.,  © 2011 Saunders

2. Rheumatic Diseases Clinics of North America – Volume 38, Issue 1 (February 2012) , © 2012 W. B. Saunders Company

3. Wang TJ, Pencina MJ, Booth SL, et al:  Vitamin D deficiency and risk of  cardiovascular disease.   Circulation 117. (4): 503-511.2008.

4. “Recognition and Management of Vitamin D Deficiency”: American Family Physician – Volume 80, Issue 8 (October 2009),  © 2009 American Academy of Family Physicians

Last edited Nov. 7, 2014