Debunking Claims That Vitamin C Could Cure Coronavirus

Debunking Claims That Vitamin C Could Cure Coronavirus Vitamin C is important for immune function. SOMMAI/ Shutterstock

Vitamin C is a common remedy that some people believe will cure the common cold and flu. Although it helps us maintain good immune function, there’s little evidence that it can prevent or substantially reduce either of these diseases. But in the midst of the novel coronavirus outbreak, some “influencers” are claiming that taking mega-doses of vitamin C can cure COVID-19 (the disease caused by novel coronavirus).

So let’s cut to the chase. Can vitamin C cure the coronavirus? Considering that novel coronavirus belongs to the same family of viruses – coronaviruses – as the common cold and flu, it’s unlikely that taking vitamin C will prevent or cure you of a COVID-19 infection.

I have written before that using vitamin C to treat the common cold was an idea popularised by double Nobel Prize-winning chemist, Linus Pauling, and further promoted by the dietary supplements industry. Unfortunately, ever since Pauling’s claim in the 1970s, there has been little evidence to back it up.

Vitamins or “vital-amines” were first discovered at the beginning of the 20th century as elements present in low amounts in our diets that were vital for health. Certainly, people lacking certain vitamins will develop deficiency diseases. For example, people deficient in vitamin C will develop scurvy. However, it wasn’t until the early 1930s that it was discovered that scurvy was caused by lack of vitamin C, and that taking the vitamin could cure the disease.


 Get The Latest By Email

Weekly Magazine Daily Inspiration

The science of nutrition was born with the discovery of vitamins, and has since become a competitive, unregulated industry, often with scientific fact competing against those spreading misinformation and looking to profit: the novel coronavirus outbreak is just the latest example.

These misleading articles have spread quickly, and are likely to be behind the shortage of vitamin C in Asia and a five-fold spike in demand for vitamin C and multivitamins in Singapore.

The body’s immune function

Vitamin C is important to maintain “redox” balance in the body’s tissues – these are types of reactions in cells that add or remove oxygen, and are essential for many processes such as generating energy in cells. These same reactions, though, can create products harmful to human cells – such as reactive oxygen species, which react with lipids (fat), proteins and nucleic acids. Vitamin C can lessen these harmful reactions. It also help enzymes build collagen, which is necessary for supporting our body’s tissues.

Although vitamin C doesn’t have miraculous disease-curing properties, some research has also shown it can help the immune system fight off bacteria and viruses. Its role in protecting against viral infections was shown in a recent review which found that immune cells need vitamin C to produce proteins that activate the immune system throughout the body against virus attacks.

Having said that, we can easily obtain sufficient levels of vitamin C in our diet that will keep our immune system fully functional. Vitamin C is plentiful in many fruits and vegetables, including oranges, broccoli and potatoes. And while it is relatively non-toxic, since its high water solubility makes it easy to excrete from the body, excessive doses can result in unpleasant symptoms such as diarrhoea, nausea and cramps.

Debunking Claims That Vitamin C Could Cure Coronavirus Study’s have only seen a slight decrease in cold medication after taking vitamin C. fizkes/ Shutterstock

Though I have said vitamin C is unlikely to be a dramatic cure for COVID-19, the fact that it can promote good immune function means it would be going too far to say there will be no effect. And although a review found that vitamin C has no effect on reducing the frequency of colds, it did find that for the average person, there was a small decrease in the duration of common cold symptoms. But for people that participate in brief periods of severe physical exercise (such as marathon runners and skiers), vitamin C halved the duration and severity of their common cold risk.

These slight effects of vitamin C on the coronavirus that causes the common cold have spurred a new clinical trial looking to cure COVID-19 infections using very high intravenous doses of vitamin C. These trials have just started and no results are yet posted. Intravenous application of vitamin C will result in much higher and faster levels of the vitamin in the blood than any amount found in vitamin C supplements taken orally. Though this approach could increase vitamin C’s mild protective effect, this is yet hypothetical and intravenous injection comes with its own risks, such as infection, blood vessel damage, air embolism or blood clots.

So alhough vitamin C does have some small effect on the common cold, it’s unlikely that taking large amounts of vitamin C supplements will cure a COVID-19 infection – or have a large effect at all. Even if intravenous vitamin C works to shorten or cure COVID-19, it will likely only be a stop-gap before therapies directed at the virus, such as vaccinations, take over. The most effective way to avoid the virus still remains washing hands, not touching the eyes, nose or mouth, and keeping your distance from anyone exhibiting symptoms.The Conversation

About The Author

Peter McCaffery, Professor of Biochemistry, University of Aberdeen

This article is republished from The Conversation under a Creative Commons license. Read the original article.

books_herbs

Monday, 24 July 2023 16:37

Uterine fibroids, or leiomyomas, are benign tumors commonly occurring in the uterus. They affect many women, particularly African Americans, and can lead to clinical symptoms such as abnormal...

Friday, 21 July 2023 15:37

During uncomfortably hot weather, people seek ways to cool down their homes. Air conditioners often become the default solution when temperatures rise as they provide fast and effective relief from...

Friday, 21 July 2023 14:28

  Brushing your teeth is essential for maintaining optimal oral health, but like most aspects of health, the full story is more complicated.

Friday, 21 July 2023 06:06

Are you seeking a gentle yet powerful practice that brings balance to your body and mind? Look no further than Tai Chi. 

Friday, 21 July 2023 05:40

  As the world grapples with the ongoing COVID-19 pandemic, there has been a surge of interest and concern regarding vaccines. Vaccines play a crucial role in preventing infectious diseases,...

Thursday, 20 July 2023 22:38

As the temperatures rise during the summer months, it's important to be aware of the risks associated with extreme heat.

Thursday, 20 July 2023 15:45

People who exercise only on the weekend have similar heart-health benefits as those who exercise throughout the week

Wednesday, 19 July 2023 17:42

The World Health Organisation (WHO) recently reported that around one in six couples globally are affected by infertility. For many years people tended to blame women for a couple’s infertility –...

AVAILABLE LANGUAGES

English Afrikaans Arabic Chinese (Simplified) Chinese (Traditional) Danish Dutch Filipino Finnish French German Greek Hebrew Hindi Hungarian Indonesian Italian Japanese Korean Malay Norwegian Persian Polish Portuguese Romanian Russian Spanish Swahili Swedish Thai Turkish Ukrainian Urdu Vietnamese

follow InnerSelf on

facebook icontwitter iconyoutube iconinstagram iconpintrest iconrss icon

 Get The Latest By Email

Weekly Magazine Daily Inspiration

Wednesday, 28 April 2021 08:51

Insects are attracted to landscapes where flowering plants of the same species are grouped together and create big blocks of color, according to new research.

Monday, 24 May 2021 08:28

There are many valid theories to explain the global appeal of cats, including our obsession with watching videos of them online. In terms of cats’ pure entertainment value, however, our...

Friday, 14 May 2021 08:30

Fertility has declined in most industrialised countries. While the causes are largely unknown, a number of factors may contribute to declining fertility rates, including the age...

Thursday, 15 April 2021 07:10

Blooming flowers, chirping birds and long-awaited rays of sunshine: The first signs of spring are often greeted with joy. But soon comes the realization that with warm weather comes ticks. 

Thursday, 01 April 2021 16:24

  Flamenco dancing is a delight to watch. A good flamenco dancer exudes an exuberant self-confidence that we, the audience, absorb. The whole dance has a quality of proud self-assurance and...

Thursday, 06 May 2021 00:51

Have you ever walked into an empty room and immediately sensed that the atmosphere was laced with tension? You may have had no idea what occurred there prior to your arrival, yet you somehow knew...

New Attitudes - New Possibilities

InnerSelf.comClimateImpactNews.com | InnerPower.net
MightyNatural.com | WholisticPolitics.com | InnerSelf Market
Copyright ©1985 - 2021 InnerSelf Publications. All Rights Reserved.