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Boosting Immunity During Covid: The Best Vitamins for your Immune System
Discover the best vitamins to boost your immune system.

Boosting Immunity During Covid: The Best Vitamins for your Immune System

Posted on 28th October, 2022, in Consumer

According to recent data from, as of early October 2022, Covid-19 cases are to rising steadily and many people believe they will continue to increase through the winter season. With Covid cases still lingering, you may be interested in how to boost your immune system's defences but as there is a wide assortment of different vitamins and supplements available, finding what works can be tricky. At Rain Nutrience, we have put together a list of the best vitamins to boost your immune system to better fight coronavirus this winter.

Firstly, it is important to establish what the Coronavirus is and how it spreads. According to the Centers for Disease Control & Prevention (CDC), COVID-19 is a highly contagious respiratory illness that is caused by the Coronavirus designated SARS-CoV-2. Due to its similarities in behaviour to the flu, it can be difficult to diagnose that you have it without proper testing. To get your test kits in the UK, you can go to the government website.

COVID-19 can be transmitted when an infected person speaks, coughs or sneezes, releasing droplets and particles containing the SARS-CoV-2 virus. On the UK government guidance page for COVID-19, it concurs by explaining that infection can occur when these droplets are inhaled or come in contact with the eyes, nose or mouth. Additionally, in rare cases, fomite transmission of the virus can occur. This is where a person touches an infected object or surface, so it is important to make sure surfaces are clean in areas where the presence of the Coronavirus is prolific.

However, there are some simple things you can do to minimise the spread. Make sure to ventilate occupied rooms with fresh air by opening windows and prevent transmission by wearing masks or N95 respirators preferably. Also, you could try to maintain a safe distance from others while avoiding densely crowded areas.

What are the Best Vitamins for The Immune System?

First up and playing a vital role in maintaining your immune system’s defences, vitamin A is a must for boosting your immunity against Covid-19. How does it do this? Vitamin A maintains the mucous barriers in your eyes, lungs, gut, and lower extremities. Furthermore, it can also aid in producing white blood cells in the body - ensuring a decrease in the chances of infections and recovery time from sickness. You can get vitamin A from a plethora of different food sources like eggs, tomatoes, and kale as well as in supplemental form.

Like vitamin A, vitamin C can also help to boost your immunity. It is known to impact the replication of virus cells and act as an antioxidant. Additionally, it helps white blood cells function more effectively and reinforce your skin’s defences by acting as a barrier against infections entering through the skin. You can find vitamin C in citrus fruits, broccoli, white potatoes, and a range of supplements.

Next on our list is vitamin D. Aside from it bolstering your immune system, vitamin D also helps to absorb calcium for healthy bones. You can receive vitamin D in a few ways: diet, sun exposure, and in supplemental form. For the best results, we’d advise taking vitamins D2 and D3. Why are they better? Both vitamin D2 and D3 are thought to be the most beneficial for raising vitamin D levels in the body. More specifically, vitamin D3’s effects last far longer than both D and D2. These vitamins are naturally occurring in some food like oily fish, eggs, and cheese. You can also get D2 and D3 in tablet and capsule form.

Additional supplements that can help to boost your immune system include vitamins B6, B12, and B9 (Folic acid). Folic and Folate are often used interchangeably, however, Folate acid occurs naturally in foods, whereas Folic is synthesised. It is in this case that we recommend the supplemental form of Folic acid for the best results.

Other immune-boosting vitamins include vitamins E and K. Vitamin K aids the immune system in disrupting the reproduction of foreign cells in the body. It also helps with bone strength too. Aside from being in supplemental form, you can find vitamin K in greens like kale, broccoli, cabbage, and lettuce. Like vitamin K, vitamin E also helps boost your natural defences but, it also helps maintain healthy skin and eyes. You can find vitamin E naturally in plant oils, nuts, and seeds. You can also get it in supplemental form.

In conclusion, all the vitamins mentioned will help to support a healthy immune system. Apart from vitamin D and K, the human body cannot synthesise most vitamins on its own. You can achieve better health and a stronger immune system this winter if you include the foods or supplements containing the vitamins this blog mentioned.

At Rain Nutrience, we are a UK-based leader in dietary supplements and nutraceuticals with 15 years of experience. You can always expect the best quality in our powder blending and capsules to suit your needs.