Low Carb Medicine

Low Carb Medicine is a new school of medicine that combines low carbohydrate/ketogenic diet, with lifestyle, nutrition, detox, bioidentical hormonal balance, cell regeneration (stem cell therapy etc) to prevent and manage diseases and to maintain health and extend lifespan. Low carb medicine follows the 3 fundamental principles of “Integrative, Natural and Harmonious” approach to health and disease management.

  1. Life Style (sleep, diet, exercise,  relaxation);
  2. Nutrition, especially vitamins, antioxidants, and mitochondrial nutrients;
  3. Detox (intrinsic and extrinsic toxins detoxification and removal);
  4. Gut health, especially leaky gut, dysbiosis;
  5. Hormonal balance, including thyroid, adrenal, sex hormones and growth hormones;
  6. Regenerative medicine, cell therapies including stem cell technology.
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Hydrogen Peroxide and Prevention of Covid-19

The following report is an interesting observation that those medical staff and patients who used hydrogen peroxide (HP) oral wash and nasal rinse seem to be protected from Covid-19.  HP is a safe, inexpensive, and effective against a variety of pathogens including viruses, when used appropriately.

In a letter recently published in the Journal of Hospital Infections, Dr. Seth Ayettey from the University of Ghana Medical School and Dr. Felix Konotey-Ahulu from the Phoenix Hospital Group in London UK et al reported their clinical study of hydrogen peroxide as oral wash and nasal rinse in the prevention of Covid-19 in a total of 1009 people (of both patients and the medical staff) from 2 sites in Ghana.  It is a striking observation that none of the medical staff who had close contact with Covid-19 patients and who took hydrogen peroxide (HP) oral wash and nasal rinse developed Covid-19. They reported that:

At one healthcare facility (SODH) in Ghana,

  • Between May and December 2020, out of a total of 466 staff, 8 were using HP for prevention and none of the 8 (0/8) contracted COVID-19; while 62 out of the 358 (62/358) who didn’t take HP prevention developed Covid-19.
  • Between January and March 2021, 94 of the 466 staff used HP and none had COVID-19 (0/94). Out of the remaining 372 staff who did not use HP, 10 (10/372) developed COVID-19.

At the 2nd healthcare facility (MO Hospital) in Ghana,

  • Between July 2020 and March 2021, 17 of a total of 84 staff developed COVID-19. None used HP.
  • 52 of the 84 healthcare workers used HP between August 2020 and March 2021. None had COVID-19

    30 of the 84 did not use HP. None had COVID-19.

  • Between July 2020 and March 2021, 5 out of 370 in-patients had COVID-19. None used HP.
  • HP prophylaxis for in-patients started mid August 2020. By March 2021, they had admitted a total of 3387 patients. All patients used HP. None had COVID-19.

Dr. Thomas Levy  summarizes the vast amount of research on HP in his new book (Rapid Virus Recovery).


Amoah et al. Journal of Hospital Infection. 2021. PMID: 34487774

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DAVINCI Global Conference on Nutrition to Boost Immunity Against Covid-19

Please forward this email to your friends and colleagues.  The more people with optimal health and immunity, the sooner we can end this Pandemic.

Also, you will receive a portion of the ticket sales when your friend or colleague registers for the Conference, as a small token of our appreciation to you.

The best way to protect yourself and your loved ones from Covid-19 (or other viral diseases and chronic diseases) is to boost your own health and your own immunity!

——Proudly Present——

DAVINCI Global Conference Nutrition to Boost Immunity Against Covid-19


Michael Holick, M.D., Ph.D.

Professor of Immunology, Boston University, USA

Organizing Committee:

Jorg Spitz, M.D., Ph.D.

Chairman, Institute of Medical Information and Prevention, Germany

Richard Z. Cheng, M.D., Ph.D.

President, Cheng Integrative Health Center, USA

We are honored to have dozens of world’s top experts in immune health and nutrition to talk about the research and practical application on how to Safely, Inexpensively and Effectively boost your own health in this global fight against the Pandemic.  We’ll not only talk about how to prevent and treat Covid-19, but also on the prevention and treatment of Long Covid and the potential side effects of Covid vaccines, should you decide to take them.

Click to view the whole panel of key note speakers and to Register:


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Our office will be closed all day tomorrow 10/19/2021 and will open again on 10/20/2021.

Our office will be closed all day tomorrow 10/19/2021 and will open again on 10/20/2021.

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What I do to stay healthy during Covid-19?

It’s been nearly 2 years since the Pandemic broke out and there is no end in sight as of yet, sadly. Winter is just around the corner and it’s the high season for viral infections.

I have been receiving lots of questions on how to stay healthy, how to prevent viral infections, how to prevent Covid-19 vaccine side effects if forced to take vaccines? I understand that some people out there don’t feel comfortable with the vaccines.  I believe vaccine side effects are also related to oxidative stress.

What do I do to stay healthy and prevent viral infections? If I do catch a cold, what do I do to treat myself? The following is my general recommendations. You don’t have to do all of them, but try to do as many as you possibly can, for at least a short period of time (a couple weeks) until viral infections are gone. In the case of vaccine side effects, I’d recommend to start the following a couple of days prior and then a couple of weeks after the injections.

  • Healthy lifestyle: sleep, exercise.
  • Diet: Low-carbon diet, avoid processed foods, avoid high Ω-6 polyunsaturated fatty acids (Ω-6 PUFA) of various oils (especially seed oils).
  • Nutritional supplements:
    • Vitamin C, 5,000-10,000 mg/day.
    • Or liposomal vitamin C, 1000-2000 mg/day.
    • Vitamin Bs,
    • Vitamin D3, ensure blood concentration at least 30 ng/ml above, preferably at 50 – 100 ng/ml). I take Vit D3 5,000IU/day. You may take Vit D3 50,000 IU once a week.
    • Vitamin E, 200 IU/day.
    • Zinc: 50mg/day.
    • Liposomal glutathione, 1,000mg/day.
    • Or NAC (n-acetylcysteine): 1,000-1,500 mg/day.
    • Magnesium: 500-1,000 mg/day.
    • CoQ10: 200mg/day.
    • Quercetin, 1,500 mg/day
    • 3% hydrogen peroxide nebulization.
    • Other antioxidants such as melatonin.
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Integrative Antioxidant Therapy in the Treatment of a Severe Covid-19 Patient


  1. We describe a case of severe Covid-19 (a man of advanced age and multiple comorbidities including diabetes mellitus, hypertension, obesity and active chronic hepatitis B) who improved quickly upon receiving the “Integrative antioxidant” intervention” approach and was discharged from hospital 4 days after the implementation of the approach.
  2. Severe/critical cases of Covid-19 cases are characterized biochemically and pathologically by cytokine storm with rapidly rising oxidative stress, leading to severe oxidative damage of biologically important macromolecules, cells, and eventually multiple organ failure and death.
  3. Early, sufficient doses and integrative antioxidants administration, to block or reduce oxidative stress, cytokine storm, may be able to prevent or reduce the oxidative damages of biologically important macromolecules (especially poly-unsaturated fatty acids in bio-membranes, PUFA, lipid peroxide chain reaction) and multi-organ failure, death.
  4. The optimal efficiency of our body’s antioxidant systems requires all components to be present and in sufficient amounts. Inadequate or absent of one component antioxidant may render the entire antioxidant system less efficient or dysfunctional entirely.
  5. Due to the high safety and low-cost profile of antioxidant vitamins, nutrients, and the potential clinical utility of this approach, as demonstrated in the case presented here, further clinical research is clearly warranted as this may help many other patients, not only in severe Covid-19, but also other cytokine storm/oxidative stress cases caused by viral or other agents.

Case description: I recently consulted on a Manila (Philippines) Covid-19 patient: Robert, male, 60 years old, he is 176 cm in height (5’9), 90 kg, with type 2 diabetes, hypertension, and with a history of chronic hepatitis B. He developed cough, low fever, and pneumonia on chest X ray. He was admitted to the hospital on 9/1/21 and was given standard therapy. But his clinical conditions didn’t improve and instead worsened. His oxygen saturation went down to as low as 90% and inflammatory/cytokine storm markers were also rising significantly (ferritin rose from 997 on 9/1 to 2202 on 9/6; D Dimer rose from 0.27 on 9/1 to 0.99 on 9/6. His CRP was also very high at 33.97).

The family requested high dose Vit C (HDIVC), but the attending physician was hesitant due to very high levels of ferritin and also the hospital has a policy on Vit C use of up to 3,000 mg per day.

During a video consultation upon request, I pointed out that the poor health status with the comorbidities (diabetes mellitus, hypertension, obesity and active hepatitis B) and the rapidly rising levels of cytokine storm markers, make Robert at very high risk of imminent multi-organ failure and high mortality. The rapidly rising levels of cytokine storm markers suggest that Robert is on the brink of developing cytokine storm, if he is not already in one1–5. The family and the attending are concerned about the high ferritin and the possible side effects of HDIVC. I pointed out Robert’s high ferritin levels are more of an “acute inflammatory” response in nature and a marker for cytokine storm, rather than an indicator of true high iron storage. The priority is to quickly block/control the cytokine storm, to reduce oxidative pressure, to prevent/minimize oxidative damages to the cells, tissues and organs, to prevent multi-organ failure.

I recommend immediate large doses of integrative antioxidant intervention:

  1. Vit C vein 30 g/24 hours;
  2. Vit E, 400iu/day 3;
  3. Vit D3 (his D3 is only 28), 50,000iu, one-time, immediately.
  4. Magnesium 1000mg/day;
  5. Zinc 100mg/day x 7-10 days, then reducing to 30-50 mg/day;
  6. Glutathione (glutathione), 1-2 g/day, intravenous or Lipo, oral
  7. 3% hydrogen peroxide atomized inhalation, 15-30 minutes, 3-4 times/day (this however, wasn’t implemented due to hospital restriction);
  8. Other (e.g. CoQ10, alpha lipoic acid, melatonin).

However, due to the policy restriction and other factors, my suggestions weren’t implemented immediately.  A few days later, the patient’s condition deteriorated further. Upon the 2nd video consult, I was really worried of an imminent multi-organ failure and was literally begging the attending physician to implement my suggestions. I pointed out loudly the high safety profile of the agents that I recommended with literature references. We, the attending physician, the caring staff, the family and myself worked as a team to figure out a way to implement my suggestions.  The hospital limits the maximum amount of intravenous VCs to 3 g/24 hours, so I recommend to give HDIVC at 3 grams/24 hours, and then add liposomal VC (luckily, they were able to find Lipo-VC of LivOn Labs in Manila), 6 grams by mouth as a loading dose and followed by 2-3 grams every 6 hours by mouth. Hydrogen peroxide nebulization, however, was prohibited by the hospital and wasn’t implemented. The rest of my suggestions including Lipo-Glutathione, zinc, high dose Vit D3 were all administered as recommended.

The next day, the patient was beginning to improve, Mike (one of the patient’s brothers) told me. On the third day (September 13th), his clinical conditions as well as his chest R ray showed significant improvement and the oxygen mask was removed. Discharge was planned. On the fourth day after the antioxidants administration (September 14th), the patient was discharged from the hospital to home.







Robert’s Chest X ray on 9/13/21 improved significantly compared with CXR on 9/10/21.

I recommended the continued the integrative antioxidants administration for a few more weeks until clinical and laboratory markers all return to normal and then be placed on a maintenance plan for his chronic disease management. The family scheduled another consultation with me is later for the management of Robert’s ongoing recovery as well as the management of his underlying chronic diseases (diabetes, hypertension and obesity).

On 14 September, the patient was discharged from the hospital and returned home for treatment.

Brief discussion:

Soon after the outbreak of Covid-19, in my paper (3/1/20)4 and in my NIH presentation (4/8/20) 5,6, I (as well as others) pointed out that Cytokine storm/oxidative stress is a key pathological and biochemical feature of severe/critical Covid-19 and other acute respiratory distress syndrome and early and high dose Vit C intravenously should be implemented4. Cytokine storm/oxidative stress is also a common feature of severe cases of influenza7, viral hepatitis8–10, viral encephalitis11, AIDS/HIV12, Ebola13, etc. Oxidative damage of important bio-molecules caused by cytokines storm/oxidative stress is largely responsible for various clinical symptoms of Covid-19.


Cytokine storm/oxidative stress results in the rapid and significant oxidative damages of bio-important molecules, especially unsaturated fatty acids on cell membranes, in a process called lipid peroxidation chain reaction14–16. This lipid peroxide chain reaction oxidizes PUFA molecules on lipid membranes much more readily and rapidly. The dietary intake of omega-6 PUFA has increased several fold during the last several decades17,18, setting the stage for explosive lipid peroxidation among those with a high PUFA diet. This may be partially the reason of the high morbidity and mortality seen in patients with basic chronic diseases such as diabetes and other metabolic diseases since these patients tend to have a high omega-6 PUFA intake19,20.

There are several different types of oxidants (free radicals) and there are different antioxidant systems that neutralize or scavenge these oxidants21,22. These antioxidants systems require each and every member of a system to be present to be effective.  For example, vitamin E is required for the termination of lipid peroxidation chain reaction. In the absence of vitamin E, vitamin C’s is ineffective in termination of lipid peroxidation23.



In conclusion, early and sufficient doses of some basic antioxidants  (such as vitamins E, C, CoQ10, glutathione, magnesium, selenium, NAD and NAD precursors) should be systematically implemented in order to prevent or to terminate cytokine storm which may lead to multi-organ failure and ultimately death. In addition to these antioxidants, other agents with natural antiviral or immune boosting effects should also be implemented including, but not limited to vitamin D3, zinc, and hydrogen peroxide nebulization24.

I introduced this concept in my presentation at the 50th Annual Conference of ISOM10.

p.s. This is one of the questions I received from the family:

“Why did Robert’s lungs suddenly improve within 2 days? (On 9/11, the pulmonologist said that Robert needed to be on oxygen for 1 month after discharge.  Then on 9/13, after a new X-ray and ABG test, the pulmonologist said he did not need to be on oxygen anymore after discharge. ”


  1. Melo, A. K. G. et al. Biomarkers of cytokine storm as red flags for severe and fatal COVID-19 cases: A living systematic review and meta-analysis. PLoS One 16, e0253894 (2021).
  2. Huang, I., Pranata, R., Lim, M. A., Oehadian, A. & Alisjahbana, B. C-reactive protein, procalcitonin, D-dimer, and ferritin in severe coronavirus disease-2019: a meta-analysis. Ther Adv Respir Dis 14, 1753466620937175 (2020).
  3. Hu, B., Huang, S. & Yin, L. The cytokine storm and COVID-19. J Med Virol 93, 250–256 (2021).
  4. Cheng, Richard Z. Can early and high intravenous dose of vitamin C prevent and treat coronavirus disease 2019 (COVID-19)? Medicine in Drug Discovery 5, 100028 (2020).
  5. Cheng, Richard. NIH Guest Speech: HDIVC on Covid-19. http://www.drwlc.com/Covid-19_talks.shtml.
  6. Cheng, R. Vitamin C in the Prevention and Treatment of Covid-19. (2020).
  7. Oldstone, M. B. A. & Rosen, H. Cytokine storm plays a direct role in the morbidity and mortality from influenza virus infection and is chemically treatable with a single sphingosine-1-phosphate agonist molecule. Curr Top Microbiol Immunol 378, 129–147 (2014).
  8. Mbachu, J., Bul, V. & Koppe, S. W. P. The Perfect (Cytokine) Storm: Autoimmune Hepatitis as a Catalyst for Macrophage Activation Syndrome: 1950. Official journal of the American College of Gastroenterology | ACG 111, S930 (2016).
  9. Xie, J. et al. Cytokine storms are primarily responsible for the rapid death of ducklings infected with duck hepatitis A virus type 1. Sci Rep 8, 6596 (2018).
  10. Richard Cheng MD PhD. Oxidative Stress, Ignored Key Pathology of Covid-19. (2021).
  11. Savarin, C. & Bergmann, C. C. Fine Tuning the Cytokine Storm by IFN and IL-10 Following Neurotropic Coronavirus Encephalomyelitis. Front Immunol 9, 3022 (2018).
  12. Muema, D. M. et al. Association between the cytokine storm, immune cell dynamics, and viral replicative capacity in hyperacute HIV infection. BMC Med 18, 81 (2020).
  13. Younan, P. et al. Ebola Virus Binding to Tim-1 on T Lymphocytes Induces a Cytokine Storm. mBio 8, e00845-17 (2017).
  14. Ayala, A., Muñoz, M. F. & Argüelles, S. Lipid peroxidation: production, metabolism, and signaling mechanisms of malondialdehyde and 4-hydroxy-2-nonenal. Oxid Med Cell Longev 2014, 360438 (2014).
  15. Mylonas, C. & Kouretas, D. Lipid peroxidation and tissue damage. In Vivo 13, 295–309 (1999).
  16. Ebrahimi, M., Norouzi, P., Aazami, H. & Moosavi-Movahedi, A. A. Review on oxidative stress relation on COVID-19: Biomolecular and bioanalytical approach. Int J Biol Macromol 189, 802–818 (2021).
  17. Shaikh, S. R. & Edidin, M. Polyunsaturated fatty acids and membrane organization: The balance between immunotherapy and susceptibility to infection. Chem Phys Lipids 153, 24–33 (2008).
  18. Guyenet, S. J. & Carlson, S. E. Increase in adipose tissue linoleic acid of US adults in the last half century. Adv Nutr 6, 660–664 (2015).
  19. Muhlhausler, B. S. & Ailhaud, G. P. Omega-6 polyunsaturated fatty acids and the early origins of obesity. Current Opinion in Endocrinology, Diabetes and Obesity 20, 56–61 (2013).
  20. Knobbe, C. Diseases of Civilization: Are Seed Oil Excesses the Unifying Mechanism?’. (2020).
  21. Phaniendra, A., Jestadi, D. B. & Periyasamy, L. Free Radicals: Properties, Sources, Targets, and Their Implication in Various Diseases. Indian J Clin Biochem 30, 11–26 (2015).
  22. Davis, U. 8.1: Introduction to Free Radicals and Antioxidants – Medicine LibreTexts. https://med.libretexts.org/Courses/Metropolitan_State_University_of_Denver/Introduction_to_Nutrition_(Diker)/08%3A_Nutrients_Important_as_Antioxidants/8.01%3A_Generation_of_Free_Radicals_in_the_Body.
  23. Sato, K., Niki, E. & Shimasaki, H. Free radical-mediated chain oxidation of low density lipoprotein and its synergistic inhibition by vitamin E and vitamin C. Arch Biochem Biophys 279, 402–405 (1990).
  24. Rapid Virus Recovery: Levy, Thomas E: 9780998312415: Amazon.com: Books. https://www.amazon.com/Rapid-Virus-Recovery-Thomas-Levy/dp/099831241X/ref=sr_1_2?crid=16DCZ0TP1XKB7&dchild=1&keywords=thomas+levy+books&qid=1632088062&sprefix=thomas+levy%2Caps%2C173&sr=8-2.











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The office will be closed on Monday, 07/04/2021, in observance of the July 4th holiday. Thank you and have a happy & safe long weekend.

The office will be closed on Monday, 07/04/2021, in observance of the July 4th holiday.
Thank you and have a happy & safe long weekend.
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You Can Protect Yourself from Covid-19 with a Better Health and Better Immune System

The best defense against diseases is our good health and our immune system. Our human body has a built in defense system. We the human race survived and thrived over the past hundreds of thousands of years if not millions of years before any antibiotic or vaccine was invented. The rapidly changing environment, particularly the pollution in our food, water, air and our personal health products and our unhealthy lifestyle have weakened our health and our immunity. 

I was recently interviewed on CCTV-English (CGTN) and with Dr. Ron Ehrlich, president of the AustralAsia College of Nutrition and Environmental Medicine (ACNEM) on China Covid-19 vaccine project and how to protect yourself from getting Covid-19 (Protected Population Immunity). 

In my interview with China Global TV Network (America.CGTN.com) Anchor Roee Rottenburg in Jun. 20th, 2021, I made it clear that vaccines are not the sole and complete solution to the pandemic problem. We need to take a multi-pronged approach to enhance our innate disease fighting mechanism and to promote consumer’s health and immune system via healthy lifestyle, diet and nutrition (what we call Protected Population Immunity at the International Society for Orthomolecular Medicine, ISOM).  I held this view over a year ago in my first CGTN interview and today, at  my 9th interview on CGTN, I am still holding this view. 

One billion doses of vaccines have been inoculated in China.  China’s massive and expensive vaccine project is truly amazing, especially in the eyes of westerners. With China’s unique social system, when China’s leader decides on a goal, he usually can muster all the resources and power that one needs to get the job done. I have to also add that the Chinese citizens, at least the ones I know of, seem to be quite compliant. While the volition and dedication of this gigantic project are applaudable, some burning questions beg some answers. 

There are media reports that some of Chinese vaccines have an efficacy of around 70%. A key question is when China reaches its goal of 70% or more vaccination rates of its population, will its leader be comfortable to reopen its borders and to relax its lockdown policy? I doubt it. News reports say that Chinese top experts are raising its “herd immunity” goal of vaccination from 70% by year end to 85%, a sign of inconfidence of its own vaccine project. Where did they get the magic 85% number? What if 85% is not “comforting” enough, will they raise it to 100%? What else to do once 100% is reached and the pandemic is not tamed? 

Putting all hopes on vaccines is like putting all eggs in one basket, let alone the problems of vaccines themselves. A vaccine only policy is an incomplete and shortsighted plan. It ignores and betrays the historical teachings of both traditional Chinese medicine (TCM) and that of western medicine. Both of these schools of medicine preach lifestyle, diet and nutrition.

Let thy food be thy medicine and thy medicine be thy food.

Top advisors (and leaders) are paid to think and plan in advance, to consider all possibilities and countermeasures, not to come up with this type of “knee-jerk reactions”.

In my interview with Dr. Erhlich, I went even further. What happened and is happening in America since the pandemic broke is disappointing. Our top medical and public health authorities have been failing us Americans. Dr. Fauci, America’s top medical advisor on Covid-19 management, was caught more than once lying to the public and lying to the US lawmakers. He even went on to say publicly “attacks on me, quite frankly, are attacks on science” . He thinks he represents Science! More and more are being revealed that he’s been corroborating with foreign forces (even anti-American forces). Public health is America’s national security issue. How can we trust our national security with such an arrogant narcissistic Liar!? Dr. Fauci should resign immediately.

In this fight against the pandemic, we not only need to apply (safe and effective) vaccines (unfortunately, none of the available vaccines meet the stringent standards of safety and effectiveness), drugs, we need to focus more on strengthening our immune system and improving our health. In addition to a healthy lifestyle, many vitamins and nutrients are designed by God or mother nature to enhance our health and disease fighting abilities. These include vitamins, nutrients and minerals (e.g., vitamins C, D), zinc and antioxidants. These natural agents have been protecting mankind (as well as the animal kingdom) ever since there is life on this planet earth. 

All and any of those who claim vitamins and nutrients are dangerous are simply ignorant. mortality due to Medical errors is the 3rd largest cause of death in the US, killing more than quarter a million people annually. Whereas CDC has never reported any case of death due to vitamin or nutrient overdose (7).  Should we worry more about the danger of vitamins and nutrients, or from the deaths from medical errors and drugs?

Trust your health to no one, but yourself.

References and Resources:

  1. CGTN interview: https://youtu.be/O9mjB7zMQEs
  2. ACNEM interview: https://www.youtube.com/watch?v=crA8sWgFKzs
  3. https://isom.ca/
  4. http://orthomolecular.org/resources/omns/index.shtml
  5. Yanagisawa A (2020) Protecting Population Immunity. J Orthomol Med. 35(1)
  6. Cheng, R. Z.  Protected Population Immunity, not a Vaccine, is the Way to Stop Covid-19 Pandemic. J. Clin Immunol & Immunotherapy May 20, 2020
  7. Anderson et al.  Stud Health Technol Inform.  2017;234:13-17. PMID:28186008.
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Office will be closed on Friday, 06/18/2021 and will Reopen on Monday ~

Our office will be closed on Friday, 06/18/2021. We will open on Monday 06/21/2021.


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High Dose Vit D for Autoimmune Diseases

Caution: This article is for scientific exchange only. Clinical application should be under a qualified physician’s supervision. Hypercalcemia may be a major concern raised against this protocol. However, as discussed in more detail below, the vitamin D resistance appears to confer an intrinsic protection against hypercalcemia. In addition, the therapy requires the patient to take some precautionary measures. Besides the avoidance of milk products and a minimum fluid intake of 2.5 l/day, patients will need to consistently monitor multiple blood parameters and undergo regular sonographic checks of their kidneys. Practically, this requires close and regular contact with a certified Coimbra practitioner.

In preparing for an international conference on Vit D and Integrative Orthomolecular Medicine, chaired by Prof. Dr. Jorg Spitz (of Germany), of which I am honored to assist him in organizing and also providing a keynote lecture, he shared with me their recent publication: Vitamin D Resistance as a Possible Cause of Autoimmune Diseases: A Hypothesis Confirmed by a Therapeutic High-Dose Vitamin D Protocol (Lemke et al 2021 PMID: 33897704). 

This international conference is scheduled for Nov. 2021, available to the public online with a very low cost. I’ll provide updates in the future on this conference. Multi-language simulcast translation to include German, Chinese (and possibly Spanish, French, and Japanese) are being considered. Stay tuned.

I summarize here the key points of their paper on high dose Vit D on autoimmune diseases.


  • Vitamin D3 is metabolized in various tissues to the biologically most active vitamin D hormone 1,25(OH)2D3 (calcitriol). Vit D3 is metabolized in the liver to vitamin D hormone, 1,25(OH)2D3, which has multiple effects, particularly within the immune system. 
  • Acquired and hereditary vitamin D resistance exists, including blockade of vitamin D receptors. This paper focuses on acquired Vit D resistance.
  • Elevated PTH is a hallmark of Vit D resistance. One key role of 1,25(OH)2D3 is to enhance intestinal calcium absorption. If ionized calcium concentrations in blood are low, the parathyroid glands release PTH which stimulates calcium release from bones. Furthermore, PTH increases the conversion of 25(OH)D3 into 1,25(OH)2D3 in the kidneys with subsequent release into circulation. PTH also inhibits the tubular reabsorption of phosphate which in turn lowers the amount of water-insoluble calcium-phosphate salts and thus increases ionized calcium concentrations. In this way, PTH constitutes a direct feedback mechanism within the vitamin D system. A physiological 25(OH)D3 level should thereby be able to suppress PTH into the lower third of the reference range. In other words: If 25(OH)D3 levels are high, PTH should be low and vice versa. In patients with autoimmune diseases this negative feedback loop is disturbed. Based on these observations, Prof. Coimbra proposed the hypothesis of vitamin D resistance.
  • Coimbra protocol: daily doses up to 1,000 IU/kg body weight daily of vitamin D3. (This can go even as high as 300,000 IU daily for 3 months, if PTH is not low enough, Dr. Spitz told me and also per Coimbra Protocol). For approximately 15 years, patients with autoimmune diseases, particularly MS (multiple sclerosis), have been successfully treated using Coimbra’s high-dose vitamin D protocol.
  • Doses for various autoimmune diseases are listed in Table 1.   
  • Using parathyroid hormone (PTH) serum levels as an indicator for the right dose. PTH target: lower third of the normal range.
  • Not only in autoimmune diseases, high dose Vit D therapy is also suggested in cancer management due possible Vit D resistance in various cancers.
  • The German Coimbra Protocol network physicians have been collecting Effectiveness and safety data and will be published in the future. 
  • Many patients with various diseases seem to have significantly improved with this protocol (https://www.coimbraprotocol.com/testimonials-1).
  • The authors summarized: we have reviewed evidence for the hypothesis of an acquired form of vitamin D resistance, developing on the basis of a genetic susceptibility from certain SNPs within the vitamin D system and its interplay with chronic stress and/or pathogen infections that are able to partially block the VDR. Other factors that have been associated with autoimmune diseases such as low sun exposure, aging or environmental toxins could easily be integrated into this hypothesis since they would further exacerbate developing vitamin D resistance arising from the described mechanisms (Figure 2 of original paper). The hypothesis of acquired vitamin D resistance thus provides a plausible pathomechanism for the development of autoimmune diseases. We consider its therapeutic exploitation by high-dose vitamin D administration as a promising approach. Our key messages reflecting the knowledge about vitamin D resistance and its treatment are summarized in Table 2.
  • Table 1. Doses of Vit D Used in Various Autoimmune Diseases:

Vitamin D3 (cholecalciferol) is a secosteroid and prohormone which is metabolized in various tissues to the biologically most active vitamin D hormone 1,25(OH)2D3 (calcitriol)


Table 2. Key points discussed in their paper.

Vitamin D3 (cholecalciferol) is a secosteroid and prohormone which is metabolized in various tissues to the biologically most active vitamin D hormone 1,25(OH)2D3 (calcitriol)

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