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Should you take Vitamin C and Vitamin D for Coronavirus | COVID-19


Should you take Vitamin C and Vitamin D for Coronavirus | COVID

Should you take Vitamin C and Vitamin D for Coronavirus | COVID-19

⏩ Timestamps, click to skip ahead!
00:00 - Introduction
00:38 - Does Colder Temperatures make you more prone to getting COVID?
02:52 - Why COVID are more likely to cause infections in winter?
03:20 - Vitamin D and COVID
07:20 - Vitamin C and COVID
09:47 - Zinc and COVID

This is the Vitamin D that I take:

Coronavirus | COVID-19 YouTube Video Playlist:

Does colder temperature make you more prone to getting a cold Or COVID-19?
Most health experts agree that when it’s cold, people spend more time indoors and in close contact with other people, and this likely increases the spread of germs.
Also, experts believe that our immune system may be more active when our body is warmer, as in during the summer months.

Back in 2007, there was this study…

In this one particular study looking at the spread of the influenza virus, they put guinea pigs together in a chamber and carried out different environmental experiments on them. They found that low relative humidities of 20%–35% were most favorable for infection, while the transmission was completely blocked at high humidity of 80%.
They also found that when guinea pigs were kept at 5 °C, transmission occurred with greater frequency than at 20 °C, while at 30 °C, no transmission was detected.
The authors concluded that low relative humidities produced by indoor heating and cold
temperatures favored the spread of the influenza virus.

I also want to add, that cold weather, by itself, can cause a runny nose without necessarily
having a cold, and this allows for the virus so be carried in those secretions, which probably facilitates transmission.
40% of common colds are caused by rhinoviruses. The second most common cause of cold is the coronavirus, the normal one, not this novel coronavirus, aka SARS-CoV-2.
Its been shown that the rhinovirus reproduces more quickly at cooler temperatures means you might catch a cold more quickly if you’re chilly.

And this probably applies to the coronavirus as well.

It's likely that with the combination of all of these 5 factors, meaning, cooler temp, lower humidity, people staying indoors more often in winter months, cold weather causing runny noses and our immune system is more active when it's warmer, these combinations of factors likely explain why colds, flu,, and COVID-19 are more likely to cause infections in the winter months.
But there is likely a 6th factor as well. And that is vitamin D. Our bodies don’t normally make vitamin D unless we get sunlight. In the winter months, for most of us in this world, we don’t get enough sunlight to make enough vitamin D. Unless you live in a warm climate, then maybe you are the exception. So if you aren’t getting enough sunlight in the winter months, that means you have to get enough vitamin D in your diet. And if you don’t do that, you will have low vitamin D levels. Vitamin D helps regulate or Calcium levels and is important for bone and muscle health. It also plays a role in regulating our immune system, but its exact role is not known.

Why is this important when it comes to the common cold, flu, and perhaps with this novel the coronavirus that’s causing COVID-19? Well, vitamin D doesn’t affect these viruses themselves. Instead, it affects our immune systems.

So what is my recommendation for taking Vitamin D?
The best thing to do is check with your doctor to see if you might have low vitamin D, and if it is low, you’ll def need to get more vitamin D, especially during the winter months.

Vitamin C is a water-soluble vitamin that is vital to the function of white blood cells that help to fight infections, and overall immune system health. Vitamin C is also important for iron absorption, and being deficient in iron can make you more vulnerable to infections in general.
The normal, recommended daily intake of vitamin C for adults from the diet and/or supplements is 75 to 120 mg. You can get about 80 to 90 mg from a cup of orange juice or sliced orange, or even more from kiwi fruit, or a cup of sweet peppers.

Zinc has become one of the most popular suggestions for reducing symptoms of coronavirus.
Some studies showed that zinc reduces the duration of a cold by half, while others showed no effect. Another study found that the type of zinc taken determined the result—zinc gluconate lozenges that provided 13.3 milligrams (mg) of zinc lessened the duration of colds, but zinc acetate lozenges that provided 5 mg or 11.5 mg of zinc did not.

Note: Please watch the whole video to get the proper details, for the character limitation of the youtube description, I couldn't provide the whole details, so I suggest you, watch the whole video.

Dr. Mike Hansen, MD
Internal Medicine | Pulmonary Disease | Critical Care Medicine

Using Vitamin C to fight COVID-19 | FOX 5 DC

Dr. Mikhail Kogan, medical director of the GW Center for Integrative Medicine, joined us to discuss research into using Vitamin C to fight COVID-19. THE LATEST:

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COVID-19 – Prevention vitamins - Penn State Health Coronavirus 14

Is there anything you can take to boost your immune system or protect yourself from COVID-19?
Dr. Chris DeFlitch, VP and Chief Medical Information Officer

Penn State Health is committed to keeping the public informed and helping people find the most up-to-date, reliable information about Coronavirus disease 2019, also known as COVID-19.

You can learn more about Penn State Health’s response to COVID-19 here:

Vitamin D in the times of Covid 19

Understand the nuances of vitamin D and its role in COVID 19.
Dr. Anurag Bajpai, MD, FRACP, SCE, Pediatric Endocrinologist,
Depura Talkies, Sanofi Aventis Webinar
MedEClasses Online Course in Pediatric Endocrinology

Could Vitamin D Help Fight COVID-19?

My opinion is that you keep the correct levels of vitamin D in your body. Now a days, due to staying indoors, it is possible that you will develop the deficiency of vitamin D. Get this checked by your doctor and use the correct dose to stay healthy.

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Here are my notes:
Daily 10 microgram or 400 IU/Day

Lippincott’s Biochemistry Review 4th Edition. Page 388
Daily 5 mg of cholecalciferol or 200 IU of Vitamin D.

However, 800 IU/Day is shown to reduce the incidence of osteoporotic fractures.
800 IU/Day recommended by the Institute of Medicine to maintain bone health.

Frank deficiency is when the levels of 25-hydroxycholecalciferol (25OHD) is less than 20 ng/mL (50 mmol/L)

No consensus that the oral vitamin D supplements are helpful

Ergocalciferol from plants is called Vitamin D2
Cholecalciferol from the animal tissue is called Vitamin D3

7 deidro-cholesterol to (UV light) to cholecalciferol (D3) to 25 hydroxylase in liver to 25 OH D to -hydroxycholecalciferol 1-hydroxylase in kidney to 1,25 DiOH D3

Vitamin D Receptors are abbreviated to VDR in the notes. These are cytosolic receptors.

Deficiency of vitamin D makes people more susceptible to respiratory tract infections.
Vitamin D supplement can reduce these infections by 12%
Keep in mind, this is for those who are deficient in this vitamin. If you are not deficient, then it will not make a difference. Because, you are already good.
Evidence is not sufficient to say that vitamin D helps prevent respiratory infections.

2018 Study

People with autoimmune diseases commonly have hypovitaminosis D

What are cathelicidins?

What are beta defensins?

2011 Study

Activation of TLR and PAMPs on macrophages increases the production of 1, alpha hydroxylase and the VDR. This in turn causes more production of cathelicidine and beta defensins 4.

Vitamin D also affects monocytes to reduce production of IL1, IL6, IL8, IL12, and TNF. Regulating the immune response.

Vitamin D acts on the dendritic cells to inhibit/reduce their differentiation and maturation. It reduces their MHCII expression, co-stimulatory molecules like CD40, CD80, CD86, decreased production of IL-12 etc.

2013 Study

Vitamin D improves immune system by helping produce cathelicidine and by helping modulate inflammatory cascade. Especially for the respiratory infections.
It also helps produce NFk-B (nuclear factor kappa light chain for activated B cells.)

Notes about the NFkB

Helps with cytokine production and cell survival.
NFk-B factor becomes active when T and B cell receptors become active. Its activation causes the gene expressions that allow T cell development, maturation, and proliferation.
T and B cells have Vitamin D receptors that help them produce NFk-B

Continuing the notes from the study:
In pulmonary infections. Lung epithelial cells are able to convert inactive vitamin D to its active form. This active Vitamin D then helps produce cathelicidine. Which helps kill the pathogens.

Vitamin D seems to favor TH2 and TH17 cell activation which is anti-inflammatory profile.
Vitamin D seems to reduce the activation of TH1 cells which are pro inflammatory by their IFN-gamma action.
A deficiency of vitamin D may dysregulate the inflammatory response of the body.

Vitamin B also increases the IkBa. This leads to inhibition of NFkB. This helps reduce the production of IL6 and IL8 by inhibiting the production of NFkB.

Coronavirus Pandemic Update 59: Dr. Seheult's Daily Regimen (Vitamin D, C, Zinc, Quercetin, NAC)

COVID-19 Update 59 with Roger Seheult, MD of

We recorded this video in response to your comments asking what Dr. Seheult's daily regimen is - to optimize his immune system and minimize COVID-19 risk. In the absence of good clinical data that is specific to SARS-CoV-2, Dr. Seheult discusses supplements, sleep, and his daily disinfection routine when removing PPE, getting in his car, and returning home from the hospital. We look forward to more randomized, blinded, placebo-control studies in the future that will build upon the current body of evidence as it relates to immunity and specifically coronaviruses such as SARS-CoV-2.

Links referenced in this video:

Johns Hopkins -

Nutrients -

Healthline -


Trinity College Dublin -

Eur Respit J -

Hydrotherapy -

Some previous videos from this series (visit for the full series):
- Coronavirus Pandemic Update 57: Remdesivir Treatment Update and Can Far-UVC Disinfect Public Spaces?
- Coronavirus Pandemic Update 56: What is “Forest Bathing” & Can It Boost Immunity Against Viruses?
- Coronavirus Pandemic Update 55: How COVID-19 Infection Attacks The Immune System & Differs From HIV:
- Coronavirus Pandemic Update 54: COVID-19 Antibody vs. PCR Testing; When to Relax Social Distancing?:
- Coronavirus Pandemic Update 53: Anticoagulation; Can Mechanical Ventilation Make COVID 19 Worse?:
- Coronavirus Pandemic Update 52: Ivermectin Treatment; Does COVID-19 Attack Hemoglobin?:
- Coronavirus Pandemic Update 51: State by State Projections; Ultrasound to Diagnose COVID19 Pneumonia:
- Coronavirus Pandemic Update 50: Dip in Daily New Deaths; Research on Natural Killer Cells & COVID-19:
- Coronavirus Pandemic Update 49: New Data on COVID-19 vs Other Viral Infections (Ventilator Outcomes):
- Coronavirus Pandemic Update 48: Curve Flattening in California, PPE in the ICU, Medication Trials:
- Coronavirus Pandemic Update 47: Searching for Immunity Boosters & Possible Lessons From Spanish Flu:
-Coronavirus Pandemic Update 46: Can Hot/Cold Therapy Boost Immunity? More on Hydroxychloroquine
- Coronavirus Pandemic Update 45: Sharing Ventilators, More on Sleep, Immunity, & COVID-19 Prevention
- Coronavirus Pandemic Update 44: Loss of Smell & Conjunctivitis in COVID-19, Is Fever Helpful?
- How Coronavirus Kills: Acute Respiratory Distress Syndrome (ARDS) & Treatment:

Many other videos on COVID-19 (coronavirus outbreak, coronavirus symptoms, influenza, coronavirus epidemic, coronavirus updates, coronavirus vaccine, boosting the immune system, vitamin D, vitamin C, Zinc, Quercetin, NAC, n-acetyl cysteine, Sleep, Insomnia, PPE, hydroxychloroquine, ultrasound to diagnose COVID-19) and other medical topics (ECG Interpretation, hypertension, anticoagulation, DKA, acute kidney injury, influenza, measles, mechanical ventilation, etc.) at

Speaker: Roger Seheult, MD
Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine.

MedCram provides videos to a variety of medical schools, education programs, and institutions (please contact us at if you are interested)

Media Contact:
Media contact info:

MedCram medical videos are for medical education and exam preparation, and NOT intended to replace recommendations from your doctor.
#COVID19 #SARSCoV2 #Coronavirus

Vitamin D for respiratory infections: Coronavirus Pandemic—Daily Report with Rishi Desai, MD, MPH

For more info and resources:

#RaiseTheLine #FlattenTheCurve

Stay on top of the latest COVID-19 news with the Osmosis Coronavirus Pandemic Daily Report. In each report, Osmosis Chief Medical Officer Rishi Desai, MD, MPH, will deliver a short, focused explanation of a specific COVID-19 topic, and provide updates on the current status of the pandemic, both within the US and globally.

Today's update focuses on COVID-19 and the use of Vitamin D for respiratory infections.

For more on today's episode please refer to:

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Medical disclaimer: Knowledge Diffusion Inc (DBA Osmosis) does not provide medical advice. Osmosis and the content available on Osmosis's properties (, YouTube, and other channels) do not provide a diagnosis or other recommendation for treatment and are not a substitute for the professional judgment of a healthcare professional in diagnosis and treatment of any person or animal. The determination of the need for medical services and the types of healthcare to be provided to a patient are decisions that should be made only by a physician or other licensed health care provider. Always seek the advice of a physician or other qualified healthcare provider with any questions you have regarding a medical condition.

COVID-19 Insights: Could Vitamin C Help with COVID-19?

Here are the references and my notes
Vitamin C (Ascorbic Acid)

Found in plants, citrus fruits, tomatoes, and green vegetables
Water soluble hence extra dose is peed out.
Deficiency causes scurvy
Large doses cause diarrhea

Reason that people looked into it was that the people with vitamin C deficiency had more occurrences of pneumonia.

Normal dose is 90 mg/day. Add 30 mg/day for pregnant women, and 35 mg/day for smokers.

Neutralize reactive oxygen species or free radicals.
Needed in procollagen hydroxylation during the collagen synthesis.

COVID-19 related
It helps shorten the flu duration by about 8% in adults and 14% in children
Helped prevent the occurrence of flu in people with rigorous physical activity when given in megadoses IV.
It has helped reduce the seriousness and ventilation need by patients.
A study is on going in China that will conclude in September.

Is useful in megadose

Claims that megadoses caused 85% reduction in reporting of the flu and cold symptoms.

Mixed results

Protective for the skin (collagen synthesis.)

Needed by the phagocytic cells when they are performing oxidative burst. NADPH is used to produce reactive oxygen species.

Some evidence that it reduces lung inflammation during the flu infection.

Study in Chinese language

Need to study the effects

Study that vitamin c is marginally useful in people engaged in rigorous activities.

Marginally helpful.

Maybe helpful

Helpful for the immune cells

Helpful during infections

Vitamin D can be deficient in COVID-19 hospitalized patients

Millions of people in various countries are spending time indoors due to coronavirus pandemic.

Lack of sunlight on the skin may mean that many of us may not be getting enough vitamin D.

Public Health England recently asked people to consider taking vitamin D supplements.

They recommend taking 10 micrograms of vitamin D a day. This advice includes pregnant and lactating women.

Babies up to the age of 1 year need 8.5 to 10 micrograms of vitamin D a day.

Vitamin D helps regulate calcium and phosphate levels in our bodies.

Appropriate calcium levels help keep our bones, teeth, and muscles healthy.

Vitamin D is also critical for a balanced immune response to infections.


Vitamin D might just save you from getting Covid-19

There may be a cheap and effective way to help prevent getting infected with Covid-19 and fighting it if you’ve already been infected. Taha Meli Arvas explains, In Brief.

All other episodes of ‘In Brief’

#Covid19 #VitaminD #Coronavirus

Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation & Overview

Vitamin D, Immune System & SARS-CoV-2 (COVID-19) | Mechanism of Vit D Immune Regulation, Overview of Evidence

In this lesson, I discuss the vitamin D its immune system regulation, specifically with regards to how vitamin D can help protect against respiratory tract infections like SARS-CoV-2 (COVID-19).

1) Brief Introduction to Vitamin D and SARS-CoV-2

2) Vitamin D deficiency and increased risk of infections

3) Vitamin D supplementation and protection against acute respiratory tract infections

4) Vitamin D and Immune System Regulation (including cytokines like IL-6)

5) Vitamin D and SARS-CoV-2 (COVID-19), comorbidities and associations

3) Summary of some Remdesivir data in in-vitro and in-vivo (mice and rhesus monkeys) studies used in treatment of other coronaviruses like SARS-CoV and MERS-CoV

****EXCLAIMER: The content (ex. images) used in this lesson are used in accordance with Fair Use laws and is intended for educational purposes only.****

*DISCLAIMER* Although there has been a meta-analysis showing reduced risk of acute respiratory tract infections with daily/weekly recommended doses of Vitamin D, WE DON’T have enough evidence to say that Vitamin D is protective against SARS-CoV-2 (COVID-19) – WE ONLY HAVE ASSOCIATIONS/CORRELATIONS at this point.

***This video is merely here to PRESENT INFORMATION from the studies quoted in this video - if people have an issue with the data, I would suggest they read over these studies and contact the experimenters/authors****

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**MEDICAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal.

Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.

*Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.*

Can Vitamin C help prevent COVID-19?

Vitamin C has lately been of interest to researchers in the fight against the COVID-19 pandemic. Large doses of intravenous Vitamin C are being tried in COVID-19 critical patients on ventilators in China.
Australian researchers reported that they did not find any benefit in using Vitamin C. But the U.S. is planning to try a combination of Vitamin C, Vitamin D, Zinc and hydroxychloroquine for COVID-19 prevention.
There is still no evidence to prove consuming a high amount of vitamin C is effective against coronavirus. According to Chennai-based Nephrologist Dr. Rajan Ravichandran, caution is required in consuming mega doses of vitamins without prescriptions, especially for long periods.
Vitamin C or Ascorbic acid is a water-soluble essential nutrient. Being water-soluble, it is not stored in the body and requires daily intake.
It is a powerful antioxidant with an important role in controlling infections and promoting healing of wounds. Its many functions include synthesis of collagen, chemical messengers in the brain and hormones.
The source of Vitamin C is fruits and vegetables like oranges and lemons. After consumption, the absorbed Vitamin C is metabolised in the body to oxalate and is removed by the kidneys. 
Large doses of Vitamin C have been used to improve the immunity and promote wound healing. Normally the body can cope with this high dose by reducing the absorption and increasing the oxalate loss in urine. But in some people, the oxalate can get deposited in the kidneys resulting in kidney failure. This is likely in patients with intestinal disorders and pre-existing kidney disease.
The daily requirement of Vitamin C is 90mg in adult males, 75mg for females which increases to 120 mg during pregnancy. 
Deficiency of Vitamin C is rare and but when it occurs, it is called scurvy. The deficiency can manifest with bleeding gums, delayed wound healing, skin spots, hair loss and anaemia.

Can immunity boosting supplements protect you from COVID-19 novel coronavirus?

Novant Health's Dr. Russell Greenfield offers advice on protecting yourself from COVID-19.

Have more questions around coronavirus?

Why Now May Be The Time To Boost Your Vitamin D And How To Tell If YOur Levels Are Too Low

Why Now May Be The Time To Boost Your Vitamin D And How To Tell If YOur Levels Are Too Low

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15 on COVID-19 Episode 5/1/20 - Vitamin C

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Vitamin D dose

Vitamin D dose
International units or micrograms
1,000 micrograms (mcg) in a milligram (mg)
1,000 milligrams (mg) in a gram (g)
1,000 grams in a kilogram (Kg)
1 kg is 2.2 pounds
IU mcg
400 10mcg
800 20mcg
1,000 25mcg
2,000 50mcg
4,000 100mcg


42% of people have a vitamin D deficiency

82.1% of black people

69.2% of Hispanic people.
Higher blood levels = over 33 ng/ml or 82.4 nmol/l
Lower blood levels less than 12 ng/ml or 30 nmol/l
50% lower risk of colorectal cancer
Consuming 1,000 IU (25 mcg) daily would help 50% of people reach a vitamin D blood level of 33 ng/ml (82.4 nmol/l)
Consuming 2,000 IU (50 mcg) daily would help nearly everyone reach a blood level of 33 ng/ml (82.4 nmol/l)
Taking 1,000 IU (25 mcg) of vitamin D daily reduced heart disease risk by 10%
Consuming 1,000–4,000 IU (25–100 mcg) of vitamin D daily should be ideal for most people to reach healthy vitamin D blood levels.
However, don’t consume more than 4,000 IU of vitamin D without your doctor's permission. It exceeds the safe upper limits of intake and is not linked to more health benefits

(pdf link)

(pdf link)


Can vitamin supplements help fight coronavirus?

Some shoppers are buying essential oils and supplements like Vitamin C and elderberry in hopes of beating the virus. But do these supplements really help?

New Study - Vitamin D High Dose and COVID-19

New Study - Vitamin D High Dose and COVID-19

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2% of the patients taking high dose calcifediol were admitted to ICU.
50% of the patients not taking calcifediol were admitted to ICU.

Effect of calcifidiol (25(OH)D) on severity and disease progress of COVID-19

Effect of vitamin D receptor activation

Vitamin D deficiency in the US population

Obesity and vitamin d deficiency. A study of their relationship

What is cholecalciferol?

What is calcifediol?

Active Vitamin D synthesis pathway

Should you always take calcium and vitamin K2 with vitamin D?


Vitamin D and Immunity, Lots of Evidence

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Public Health England
Vitamin D recommendations

Vit D and COVID

Evidence that Vitamin D Supplementation Could Reduce Risk of Influenza and COVID-19 Infections and Deaths.

Prevalence and correlates of vitamin D deficiency in US adults

About 42% of the US population is vitamin D deficient. However, this rate rises to 82% in black people and 70% in Hispanics

Vit D deficiency in Ireland

Vitamin D is essential for bone and muscle health

Arizona University

The most important Vitamin to take daily during the Covid-19 situation.

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