Power Up With These Effective Immune System Supplements

Supplements reviewed here: Olive Leaf Extract ,Host Defense Mushroom Extract, ProBoost Thymic Protein A, Green Tea Mega EGCG and ImmPower ™ AHCC®

[For an explanation of 1 thru 6 in the illustration, go here.]

Pertinent cells of the immune system are shown, such as plasma, B, Memory T, Helper T, and Cytotoxic cells, as well as Macrophage.


AS I’VE remarked several times on this blog, many supplements benefit the body in several ways. In fact, rare is it that a supplement would only be helpful for one thing, say the heart, or joints.

Fish oil, for instance, is known to reduce the risk of heart disease AND support cognitive function AND benefit the health of the macula and retina of the eye AND improve joint function. Wow.

So, any particular supplement can favor several physical functions. If some supplement, for example, reduces stress or illness then, naturally, it benefits the immune system which has one less battle to fight.

There’s a long list of innovative supplements that can help improve your immune system in a variety of ways, such as antioxidants to boost amino acids or calm inflammation; and nutrients that address T-cells, or trigger “natural killer” cells — the immune system’s inherent defenders.

Immune system supplements like ProBoost Thymic Protein A, Green Tea Mega EGCG and Transfer Factor Essentials™ are exceptional for building your immune system.

I haven’t been sick for years, but when I do feel “something” circling about, I increase my consumption of the usual stuff, such as Vitamin C and any of these excellent multivitamin/mineral supplements, then then turn to:

Olive Leaf Extract (15% Oleuropein) (60 medium veggie capsules)

Olive Leaf Extract  This has a wonderful compound called oleuropein which can help the body battle viruses, bacteria, and fungi.  Like with Host Defense (below), I take this when I may need it, not on a regular basis.

ImmPower (30 medium veggie capsules)

™ AHCC® is developed by combining several species of mushrooms used in traditional Japanese healing to make one, extremely powerful, hybridized mushroom.  ImmPower™ is specially formulated to support the immune system’s front-line defenses, including maintaining peak Natural Killer cell activity. ImmPower™ contains AHCC® (Active Hexose Correlated Compound), a unique hybrid extract of several mushrooms used in traditional Japanese healing. This formula enhances the body’s defenses for optimal immune system support.

For a good primer on how your immune systems works, check out this informative article.

Yes, there are many other immune system supplements that do an effective job of powering up your immune system, such as those linked to above, but for me Olive Leaf Extract and the mushrooms in ImmPower do the trick.


Further Reading

Before you go, check out the various articles I’ve written about the immune system.  Here are three to you may find useful:


Go here for more immune support product information.

Go here for a list of Product Categories on this site.


Supplement Disclaimer

Just as with the descriptive statements made at the various company sites that manufacture and/or sell the supplement products presented in this blog, none, or nearly none, of the potential benefits stated here have been evaluated by the FDA. Likewise none, or nearly none, of the products here can be represented to diagnose, treat, cure or prevent any disease. Before engaging a supplement program, it always makes sense to get the advice of your health practitioner.

Last Updated on February 27, 2022 by Joe Garma

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Joe Garma

I help people live with more vitality and strength. I'm a big believer in sustainability, and am a bit nutty about optimizing my diet, supplements, hormones and exercise. To get exclusive Updates, tips and be on your way to a stronger, more youthful body, join my weekly Newsletter. You can also find me on LinkedIn, Twitter and Instagram.

Click Here to Leave a Comment Below 7 comments
Alexandra H. - December 8, 2009

hey Joe!
alrighty, so i thought i would ask you for some supplement advice! 🙂 i’m in Singapore right now and took a pack of multivitamins with me (just to cover the basics), here i found this cool store where I bought these ‘Garlic Plus’ supplements containing Garlic Oil, Lecithin and Wheat Germ Oil. (Good purchase? I thought it looked good :))
I also saw this Ginseng Ton supplement which seemed rather interesting! I saw tons of other great things but i’m on a tight budget so need to prioritise…any suggestions?

    Joe Garma - December 8, 2009

    Alexandra, a rolling stone gathers no moss. Darn, girl, Singapore!

    Well, the garlic is a good idea cause it will help beat up any strange bacteria and fungi that international travel might introduce. The wheat germ oil is an odd ingredient. The concern with it is that oil can go rancid very quickly if it’s not stabilized with something, often a chemical which is not ideal.

    Tight budget stuff also includes grapefruit seed extract (a favorite of Westerners traveling to India) and olive leaf extract. Try to find reputable manufacturers — use the Internet — rather than the cheapest.

    Ginseng’s benefits can be spotty due to quality issues. It’s more for energy, not anti-bacterial etc. So, since you already have the basic multi-stuff, would prioritize with stuff to enhance safety first, like what I mention above.

    Have a great trip!

Alexandra H. - December 9, 2009

Thanks Joe! 🙂
alrighty then, ill be on the look-out for grapefruit seed extract and olive leaf extract and maybe not so much the Ginseng! Great!
Thanks for the heads up concerning wheat germ oil (and oils in general) – ill be more careful when it comes to oils! this particular ‘Garlic Plus’ is from Vitahealth (Australia) and seems to be an ok brand, but ill be sure to pay attention to the brands in the future! Thanks! 🙂

Greetings from very tropical (31 degrees celcius today) and very HUMID Singapore!

Thanks again Joe! 🙂

garlic - June 1, 2011

Olive leaf extract went through extensive laboratory experimentation and was found to be a safe, non-toxic substance.

    Joseph Garma - June 2, 2011

    Well, I can tell you that whenever I feel like I may be getting a bit sick, I take it and snap right back to the norm.

      kyrani99 - August 7, 2015

      This sounds like a placebo effect to me. The number one influence on your health is the thoughts you entertain or those you can be cheated to uphold believing them to be true. Thoughts and especially beliefs are the major factor that affects the body because reactions to thoughts are somatic.

      I do very little exercise, eat what I like and that includes lots of sweets and I never take supplements and I am in excellent health. My health is better now than when I was in my 20s and 30s and I am 65yo. And I have an army of enemies hell bent on trying to do me harm for 15 years now.

      Just visit my blog and get acquainted with the ways in which toxic /psychopathic people look to cheat others and you will have the best protection for your health if you are not toxic of course.

        Joe Garma - August 9, 2015

        Kyrani, I’ve spent decades seeped in the metaphysical, including spending a month or more at various meditation retreats, so am well aware of the power of the mind over body treatise. However, my observation is that the vast majority of people learn a new lexicon that sounds great but is difficult (or is not consistently) put into practice.

        To the extent we have thoughts/emotions that create sufficient stress to boost cortisol, it can be deleterious to several biological functions leading to illness. And, as you suggest, the reverse is true in that positive thoughts/emotions can elevate our health. But for the vast majority of us, righteous thinking is insufficient… we must incorporate all the aspects of a healthy life into our lifestyle choices.


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