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Important Supplements That Help Boost Your Immune System (and potentially prevent COVID-19)

I am not a doctor, but I've had an abiding interest in medicine most of my life. Any supplement I suggest I take myself or have taken.

Focus on Your Immune System

Although I have done a lot of research on supplements and received advice from reliable sources, I am not a doctor.

Before taking any supplement, consult with a physician. Do your own research. Regardless of how good any supplement may be, there can always be interactions with something else you're taking or food you're eating. It might affect something about your unique system. Always consult your doctor first.

That said, most of the supplements listed in this article can likely be tried with minimal risk. For what it's worth, I've experimented on myself, so as far as an example of one is concerned, I've never had any problems. The thing with doctors is that they simply don't know everything. You may have to consult with a herbalist or somebody else with specific expertise.

The supplements I'm listing here are specifically associate with your immune system. Seems like a healthy immune system is more important than ever. These supplements have substantial research behind them that support that they improve the ability of your immune system to work well.

Some of them, as you will see, are specifically focused on inflammation. Reducing inflammation from various invaders in your body and/or damage is a key component of staying healthy.

The Elderberry plant

The Elderberry plant

Elderberry (Sambucus)

I've been taking Elderberry as a supplement longer than any other and swear by the results.

In fact, for a long time people were touting Echinacea as an immune booster when Echinacea's effects were always suspect (I don't recommend it). However, Elderberry has a long history as an immune supplement. It's particularly good in two respects: for shortening the duration of colds or preventing them altogether and for preventing the flu.

Whenever I start to feel even the slightest bit sick, I take Elderberry and the symptoms seem to go away. For years (before having kids) I took Elderberry instead of getting a flu shot. I've never had the flu. Of course, this "evidence" is entirely anecdotal. Here's a little background and factual information on Elderberry:

Scientific Support for Elderberry

Curcumin (found in Turmeric)

Curcumin (found in Turmeric)


Curcumin is the most active compound in Turmeric. Turmeric is the spice that gives curry its yellow color.

The benefits of Curcumin are many, including anti-inflammatory properties. It increases anti-oxidant properties in the body, which can fight against aging. It improves brain function and lowers the risk of brain disease. It should lower your risk of heart disease. It can help prevent and even treat cancer.

In other words, a pretty amazing supplement. I just started taking Curcumin regularly, but it's always hard to tell what it does or if it's working.

All I can say is I haven't been the least bit sick in over a year. Again, that's strictly anecdotal evidence. I've always been pretty healthy and I'm fit, so that doesn't mean anything.

Scientific Support for Curcumin



Of every supplement in this list, Epicor is probably the least well-known.

Epicor supports your immune system and gut health and is the result of much research. Basically, in the late 1800's, a farmer noticed that the animals on his farm who were fed table scraps fermented with sour milk were much healthier.

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Fast forward to the late 20th century, and employees who were exposed to fermented animal feed in a factory took less sick leave than those that weren't.

Ultimately, scientists discovered that taking fermentate boosted the body's immune system. Taking Epicor can boost the system's immune response in two hours after taking it. So, for instance, if you know you're going to be in a situation where you might be exposed to a virus, taking Epicor beforehand can give increase your immune system's ability to fight any invaders.

It was recommended to me specifically as help to prevent COVID-19.

Scientific Support for Epicor

Vitamin D taking out a nasty invader.

Vitamin D taking out a nasty invader.

Vitamin D

The basic thing with vitamin D, which is metabolized when you're in the sun, is that its deficiency has been linked with autoimmune disorders, so it's essential that you maintain your vitamin D levels.

Vitamin D deficiency has been linked to multiple sclerosis, type 1 diabetes, and Crohn's disease.

It's estimated that 40% of adults have a vitamin D deficiency. When your skin is exposed to sunshine, it makes vitamin D from cholesterol. So one could extrapolate that vitamin D deficiency may be tied to people being inside too much or not getting enough outside exercise.

It's hard to get vitamin D from food since only a few foods contain it including cod liver oil, swordfish, salmon, canned tuna, beef liver, and egg yolks.

Scientific Support for Vitamin D

An oldie but a goodie: vitamin C

An oldie but a goodie: vitamin C

Vitamin C

Among the supplements mentioned in this article, vitamin C is the easiest to get in food and the best way to get the ingredients in any supplement is through food, if possible. Your body will metabolize it more easily if it's in your food.

Among the foods with the most vitamin C are: guavas, kiwifruit, bell peppers, strawberries, oranges, papaya, broccoli, tomatoes, snow peas, and kale.

Vitamin C is a powerful antioxidant that can strengthen your body's natural defense systems. It can also help manage high blood pressure, lower your risk of heart disease, boost immunity.

Low levels of vitamin C have been linked to poor health.

Scientific Support for Vitamin C

  • Vitamin C - Consumer
    Vitamin C (ascorbic acid) is an antioxidant. Learn how much you need, good sources, deficiency symptoms, and health effects here.


Lion's Mane (mushrooms)

Lion's mane is the newest supplement in my regimen of supplements. Frankly, it's something I had never heard about until recently.

Lion's mane is a mushroom that are white, globe-shaped fungi with long, shaggy spines. The mushrooms are popular in Asia where they are used in both food and for medicinal purposes.

Among the benefits of this mushroom are reduced inflammation and improved cognitive function. It can also help heart health.

Scientific Support for Lion's Mane




Although Zinc is an essential nutrient for your body, you must get it through either food or supplements since your body does not produce it naturally.

Immune function is one of the things that requires Zinc to operate properly.

You will often find a lot of cold remedies contain Zinc. Over 300 different enzymes require Zinc to operate properly. Immune cells require Zinc to operate properly too.

Scientific Support for Zinc

This content is accurate and true to the best of the author’s knowledge and does not substitute for diagnosis, prognosis, treatment, prescription, and/or dietary advice from a licensed health professional. Drugs, supplements, and natural remedies may have dangerous side effects. If pregnant or nursing, consult with a qualified provider on an individual basis. Seek immediate help if you are experiencing a medical emergency.

© 2020 Allen Donald

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