16 Immune Boosting Supplements

Want to know how to boost your immune system quickly and effectively, and need a little extra help? Supplements could be an excellent addition to healthy daily habits. It is however, important to note that some supplements may interact with your existing prescription medications, so you may need to get assistance from your healthcare professional to help pick the right immune system-boosting supplement for you.

Here’s a comprehensive A-Z glossary of some of the best vitamins and supplements to start boosting your immune system, plus, find out what the research has to say about each of them:


Andrographolide is a terpenoid compound and a key component in the herbaceous plant, Andrographis. Studies show that andrographolide may offer its antiviral properties towards protecting against respiratory-disease-causing viruses, such as enterovirus D68 and influenza A.


Astragalus is a herb that has been used in traditional Chinese medicine for centuries. According to research conducted on cyclophosphamide (Cy)-induced immunosuppressive mice, Astragalus extracts may prove beneficial in enhancing immune-related responses.

B Complex Vitamins

The much-needed B vitamins, particularly B6 and B12, are key for maintaining optimum immune function, so it should come as no surprise that being deficient in these essential vitamins may have a negative impact on the immune system. If you think you’re not getting enough B vitamins, get your blood levels tested, if it’s low, try a quality B6 & B12 supplement.


There’s been a lot of hype about the many benefits of curcumin supplements, and for good reason, if you’re not already familiar with it, curcumin is the active compound found in turmeric which possesses powerful anti-inflammatory properties. According to animal research, curcumin could assist in boosting immune function as well.


Echinacea is a genus of herbaceous flowering plants in the daisy family. Research conducted on these plants shows that some species can assist in improving immune health, while exhibiting antiviral activity against several respiratory viruses, such as respiratory syncytial virus and rhinoviruses.


Black elderberry (Sambucus nigra), has a long history as a treatment for infections and has garnered a lot of attention regarding its effects on the immune system. Studies show that it may possess certain antibacterial and antiviral action against bacterial pathogens which cause upper respiratory tract infections, as well as strains of the flu virus.

In light of these antiviral properties, there has been a substantial amount of research regarding the use of elderberry for COVID19, caution however is needed as there have been reports of increased cytokine production, which could cause harm to healthy cells.


Garlic is probably quite well-known for its potent anti-inflammatory and antiviral properties. Studies show that garlic does in fact help to boost the body’s immune system by stimulating specific cell types, such as macrophages, lymphocytes, natural killer (NK) cells, dendritic cells, and eosinophils.

Licorice Root

Licorice root’s key component in this instance is glycyrrhizin, a substance that may offer protection against viral infections. Research conducted in test tubes showed that glycyrrhizin displays antiviral action against severe acute respiratory-syndrome–related coronavirus (SARS-CoV).

Medicinal Mushrooms

There are many types of medicinal mushrooms that act as immune system boosters, such as cordyceps, lion’s mane, maitake, shitake, reishi, and turkey tail. Research shows that certain types of medicinal mushrooms can boost your immune system, as well as combat the symptoms of conditions such as asthma and lung infections.

Pelargonium Sidoides

Pelargonium sidoides is a plant native to Southern Africa and a key ingredient in some natural immune boosters, it has been shown to assist in relieving symptoms of acute viral respiratory infections, such as the common cold and bronchitis, however, more research is needed.

Pelargonium sidoides is the key ingredient in Linctagon C Effervescent Tablets, give it a try and see for yourself, it may be just what the doctor ordered next time you come down with the flu!


Propolis is a resin-like substance produced by honeybees, made from resins, waxes, essential oils, pollen, and various organic compounds. It has been shown to display powerful immune-boosting and antiviral properties, however more research is needed.


Selenium is a mineral that is absolutely key to immune health. Some animal research indicates that taking a selenium supplement could help boost the body’s defenses against flu strains, while other studies show that it could also protect against the H1N1 influenza virus.

Vitamin C

When we think of immune-boosting vitamins, vitamin C is probably what springs to mind first, it promotes the functions of immune cells, and boosts protection against infection, while assisting to clear out old cells, replacing them with new ones. It’s a powerful antioxidant, much needed to defend against free radicals, helping the body to ward off damage caused by oxidative stress.

Studies show that supplementing with vitamin C can help to reduce the duration and severity of upper respiratory tract infections, such as the common cold.

Looking for the best vitamin C supplement out there to boost your immune system? Give Solal Double Vitamin C Capsules a try.

Vitamin D

Vitamin D is the original sunshine vitamin needed to keep your immune system functioning optimally, and being deficient in this vital vitamin can actually have negative effects on your immune system. Research suggests that having low levels of vitamin D is related to an elevated risk of developing upper respiratory tract infections, influenza, and allergic asthma.

Research also suggests that simply taking a vitamin D supplement may help your body protect itself against respiratory tract infections. Vitamin D is a nutrient that’s been of particular interest when it comes to COVID19, according to research vitamin D is shown to boost the body’s ability to heal itself, while also inhibiting inflammation in the respiratory system. 

Vitamin E

Vitamin E is a vital nutrient for the general health and wellbeing of your body. It’s also a potent antioxidant that helps the body to ward off infections. Studies show that vitamin E may boost cell-mediated and humoral immune responses in various types of animals.


Zinc is a mineral that is quite often added to your multivitamin and mineral supplements, and for good reason, a zinc deficiency can wreak havoc on your immune system, leaving you at risk of infections and diseases, such as pneumonia.

According to research, zinc supplements may offer protection against respiratory tract infections, such as the common cold, while other research shows that zinc helps to shield tissue barriers in the body, preventing pathogens from breaking through.

Try a zinc supplement to help boost your immune system this winter!

Here’s to Great Immune Health!

Supplementing can be a great addition to your existing immune health regimen, so when looking for the best supplements for building immunity, you really need to take a personal approach and look at what your diet may be missing.

Remember to get the advice of your healthcare practitioner to see if your chosen supplement is a good fit for you, especially if you’re already taking other prescription medications.

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