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Why Boosting Your Immune System is Your Best Protection Against Any Virus

Recent NHS estimates suggest that 70 percent of Britons could develop the Coronavirus (Covid-19) – and 15 percent of those could end up in hospital.1

So what determines who gets sick, and who doesn’t?

In a nutshell – it’s the health of your immune system. At this time scientists believe that although most people would be likely to suffer a mild version of it, with a cough, fever and muscle aches, the virus is most deadly for those who are elderly or have underlying health problems2 – in other words, people who have compromised immune systems.

How does your immune system work?

Inside your body, there’s a war going on.

We are constantly surrounded by microscopic viruses. They are around us all the time, in the air or on the surfaces we touch, just waiting for a host to come along. Viruses are parasites – tiny bundles of genetic material whose only purpose is to reproduce. They can enter us through the nose, mouth or breaks in the skin.3

Once inside your system, a virus must find a bacterial cell to infect. Cold and flu viruses will attack cells that line the respiratory or digestive tracts. Coronavirus is a respiratory virus; scientists believe that the virus causes severe damage to lung cells and their alveoli, the air sacs that take in oxygen, causing lung tissue to stiffen. The heart must then work harder to get limited oxygen to the rest of the organs.4

Once a virus has found a bacterial cell to invade, it will punch a hole in the cell membrane, insert itself into the bacteria and use that bacteria’s DNA to make multiple copies of itself. Eventually the bacterial membrane explodes, releasing all the new viruses, who all go out and repeat the process. With this kind of exponential growth, it’s easy to understand how viruses can act so quickly.

While the virus is hiding inside the bacteria, it’s hard to spot. Luckily your immune system has responder cells called T cells and NK (Natural Killer) cells. Imagine these cells like the SAS of the immune system, whose job is to search out and destroy viruses and pathogens inside your system.

T cells have specialised proteins on their surface called “T cell receptors,” which are like microscopic sniffer dogs that help them to recognise virally-infected cells.5 Once a T cell finds a virally infected cell, it will release “cytotoxins” that destroy the infected cell, preventing it from spreading more viruses.

But viruses fight back, too. Viruses are highly adaptable, and have developed ways to avoid detection, camouflaging themselves so that the T cells and NK cells can’t find them. Viruses can also evolve in a short space of time. Studies have shown that when a virus is prevented from infecting its target cell, it can evolve in order to attack successfully in just two weeks.6

So it’s a race between your immune system, which is working to sniff out and destroy the viruses – and the viruses themselves. Both sides are constantly learning, battling and evolving.

How do you support your immune system?

Boosting your immune system is your best protection against all viruses. And the fastest way to increase your immunity, is to improve your gut health.

70 percent of the body’s immune cells are packed into the gut, meaning it functions as the immune system’s “control tower” while still serving as a digestive organ.7

In addition to various types of immune cells, the gut also contains something else indispensable to your health: 500 different types of gut bacteria, totalling some 100 trillion organisms in total. Together, they constitute your intestinal flora, a virtual ecosystem that suppresses the infiltration of pathogens (germs) into the body.8

Gut bacteria help your immune system’s T cells develop—teaching them the difference between a foreign substance and the body’s own tissues. This is an extremely important process that determines how and what your immune system responds to, and the success of this critical process is determined, in part, by the health of your gut.

Inside your gut there are “good bugs” and “bad bugs.” Good bugs interact with your immune system, and keep pathogens at bay. Bad bugs create inflammation which disturbs the balance of the ecosystem, and promotes disease. Frequent or uncontrolled use of antibiotics and changes in dietary pattern have been shown to disrupt the microbiome, creating an imbalance called “dysbiosis.” When your gut is a state of dysbiosis, it cannot work properly to protect you from virulent pathogens, bacteria and viruses like Coronavirus.9

The Gut-Lung Connection

Scientists have now established the “gut-lung axis,” which shows that your gut bugs actually modulate your immune system during respiratory disease, by boosting the activity of your T cells.10 There is clear evidence that gut microbiota can influence pulmonary barrier and immune functions, as well as susceptibility to and the course of several respiratory diseases including infections.11

5 Top Tips to Improve Gut Health For Immunity

  • Take a therapeutic probiotic. Gut health is all about increasing diversity inside the microbiome. Look for a diverse natural probiotic that is unflavoured and unsweetened, as sugar and sweeteners have been shown to do more harm than good inside the gut.12
  • Take a complex prebiotic. Gut bugs are living organisms that feed on specific types of fibre that may not be present in your daily diet. Taking a prebiotic along with your probiotic will greatly enhance the immune-boosting effect.13
  • Cut back on sugar. Sugar has been found to increase the populations of “bad bugs” inside your gut, which increases inflammation and harms your immune system.14
  • Eat a wide variety of fruits and vegetables. Restricted diets like the low FODMAP diet have been shown to negatively impact gut diversity over time.15
  • Stick to a regular bedtime and get plenty of sleep. Scientists have now definitively linked gut microbiome composition, sleep physiology and the immune system.16

Get fast, free advice from a gut health expert now

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  1. The Telegraph - "Coronavirus: Outbreak could leave one in 10 people in the UK in hospital". Written by Laura Donnelly and Gordon Rayner on February 28, 2020
    link to article
  2. The Telegraph - "Coronavirus: Outbreak could leave one in 10 people in the UK in hospital". Written by Laura Donnelly and Gordon Rayner on February 28, 2020
    link to article
  3. The Microbe World - "Viruses".
    link to article
  4. The Telegraph - "The big coronavirus FAQ: advice for living with Covid-19". Written by Helen Chandler-Wilde, Guy Kelly, Luke Mintz and Nick Trend on March 4, 2020
    link to article
  5. British Society for Immunology - "Immune responses to viruses". Written by Kerry Laing on
    link to article
  6. ZDNet - "Study shows how swiftly infectious viruses evolve". Written by Laura Shin on January 31, 2012
    link to article
  7. ScienceNordic - "Why gut bacteria are essential for a healthy immune system". March 29, 2018
    link to article
  8. Newsweek - "Boosting Immunity Through Gut Bacteria". Written by Keiko Iguchi on February 22, 2019
    link to article
  9. International journal of molecular sciences - "Dysbiosis Disrupts Gut Immune Homeostasis and Promotes Gastric Diseases". Written by Toor, D., Wsson, M. K., Kumar, P., Karthikeyan, G., Kaushik, N. K., Goel, C., Singh, S., Kumar, A., & Prakash, H. on May 16, 2019
    link to article
  10. Cell Microbiology - "The role of the lung microbiota and the gut-lung axis in respiratory infectious diseases". Written by Dumas A, Bernard L, Poquet Y, Lugo-Villarino G, Neyrolles O. on December 20, 2018
    link to article
  11. FEBS Letters - "Linking microbiota and respiratory disease". Written by Matthias Hauptmann and Ulrich E. Schaible on September 17, 2016
    link to article
  12. Current opinion in gastroenterology - "Probiotics and immune health". Written by Yan, F., & Polk, D. B. on May 2, 2014
    link to article
  13. Journal of Industrial Microbiology and Biotechnology - "Prebiotics: tools to manipulate the gut microbiome and metabolome". Written by Enam F, Mansell TJ. on June 14, 2019
    link to article
  14. Nutrients - "Diet-induced dysbiosis of the intestinal microbiota and the effects on immunity and disease". Written by Brown, K., DeCoffe, D., Molcan, E., & Gibson, D. L. on August 21, 2012
    link to article
  15. PloS one - "A low FODMAP diet is associated with changes in the microbiota and reduction in breath hydrogen but not colonic volume in healthy subjects". Written by Sloan, T. J., Jalanka, J., Major, G., Krishnasamy, S., Pritchard, S., Abdelrazig, S., Korpela, K., Singh, G., Mulvenna, C., Hoad, C. L., Marciani, L., Barrett, D. A., Lomer, M., de Vos, W. M., Gowland, P. A., & Spiller, R. C. on July 26, 2018
    link to article
  16. PloS one - "Gut microbiome diversity is associated with sleep physiology in humans". Written by Robert P. Smith, Cole Easson, Sarah M. Lyle, Ritishka Kapoor, Chase P. Donnelly, Eileen J. Davidson, Esha Parikh, Jose V. Lopez and Jaime L. Tartar on October 7, 2019
    link to article

10 thoughts on “Why Boosting Your Immune System is Your Best Protection Against Any Virus

  1. i have had a nasty cold and a bit of a cough with a small headache , but no temperature so not coronavirus
    it has been on for a week but is now improving
    i am taking your complete prebiotic.
    is there anythingelse of yours i should take ?

    1. Hi Peter,

      We’re so glad to hear that you are on the mend! 😊

      That’s great! We’d recommend our ‘Get Me Through The Day’ tea – this natural medicinal loose leaf tea contains: rosemary, vervain, peppermint and mugwort. The compounds in rosemary tea may also have antimicrobial properties, which may help fight infections. Rosemary leaves are employed in traditional medicine for their antibacterial and wound healing effects.,-antimicrobial,-and-anti-inflammatory-compounds

      I’d also recommend our CG Oil – CG Oil is a proprietary blend of essential oils, and is used primarily to combat skin infections, throat infections and more serious issues like MRSA.

      Some CG Oil uses are as follows;

      2-4 drops in a pan of boiling water, pop your head under a tea towel and inhale the steam to help ease congestion or infection on the chest. Also helps with other respiratory issues.
      3-6 drops in a sink of warm water – wash affected areas with a clean flannel/cotton pads.
      4-8 drops in a bath – soak before any op or in case of widespread infection.
      2-4 drops in your mop bucket – smells delish and works as a great natural anti-bacterial.
      1-3 drops diluted in water and in an oil diffuser to fill the room with a gorgeous scent.

      You can find our CG Oil, here:

      I hope this helps, and please don’t hesitate to get back in touch if there’s anything else we can help with.

      Best wishes,

  2. I’m taking CG’s kefir. Evolution_18 vitamins and Altrient C Liposomal Vit C.
    I wore tight rubber gloves to the supermarket. The trolley, scanner and self checkout screen have more germs than a toilet seat.

    1. Protection is the key Elaine! Although actually it’s better to not wear gloves, and wash your hands frequently -generally, when people wear gloves it’s actually less sanitary than when they don’t wear gloves, with the exception of when employees have cuts or open sores on their hands. A hand-hygiene study was conducted by the CDC and found that hand washing rates were significantly lower when gloves were worn. This is due to the fact that gloves create a false sense of cleanliness, which ultimately leads to gloves being used incorrectly and employees not washing their hands well or as often as they should.

  3. Shann
    That’s the best understandable explanation that I’ve read and very interesting too!

  4. Are you implying 40 million people will get coronavirus in the UK

    I think this is scaremongering at it’s worst I have seen so far.

    Interesting that your addendum doesn’t back up the 70% of Britons

    Really sad and extremely disappointed to read this on your site as I’m a big advocate of your products.

    1. Actually Rachel the most recent NHS estimates have gone up to 80% of the population whom they believe may contract the virus. Keep in mind that most of these people will suffer only a mild case.

  5. My son recommended your Kefir. So my husband & I did a lot of research into gut repair. To be honest I’m glad we did. We completely changed our diet & eating habits. We cut out sugar, had no wheat & started to make our own kefir with jersey milk. And the changes in our health have been amazing. I have been diabetic for six years. After three
    months of this regime I no longer have diabetes! Yay!
    So I’m so happy that we have made these changes for our health & well being. Before all of this. Thank you for your time.

    1. Hi Sally,

      This is so lovely and I’m so glad that you have benefited from these changes. 😊

      Being no longer diabetic is such an achievement!

      Please don’t hesitate to get in touch if there’s anything else we can help with.

      Best wishes,

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