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Your Guide To The Top 3 Immunity Boosting Supplements Of 2024

Updated 10/24/2024

Discover the best supplements to build your immune system and what you absolutely must avoid

A weakened immune system robs you of valuable time by making you sick more often and with more severe symptoms.

Many people have learned about immune system supplements as a natural, simple way to counteract these effects. These "immune system builders" have since become hugely popular, but do their effects stand up to the hype?

Recent scientific research shows that a quality immune system supplement can help strengthen your immune system and improve your overall health.

Yet not all immune system builders are of the same quality. Due to their popularity, more and more companies are cutting corners by making false claims and selling inferior, ineffective products.

With so many options, you could spend weeks diving into all the information available. That's why Consumer Survey did the hard work for you, comparing the top 33 immune system supplements. Read on to discover everything you need to know and which Top 3 products we recommend.

What Causes Your Immune System To Weaken?

Your immune system is far-reaching and adaptable, but certain factors can keep it from performing at its best. Any of these factors can put your health at risk, worsen your quality of life, and lower your energy and productivity.

If you can, avoid these factors listed out below to prevent your immune system from getting weaker.

Factors That Cause A Weakened Immune System:

Pollution/Bad Air Quality

Eating Too Much Junk-Food

Not Eating Enough Fruits/Vegetables

Lack Of Sleep

Aging

Stress 

Because many of these causes are unavoidable, more and more people have chosen to safeguard their health by taking an immunity supplement.

There are a range of newly developed immune system supplements on the market that can help you feel better.

Here are the crucial details you need to take into account when considering them:

Effective Immune System Supplements:

A Strong Dosage Of Zinc

As many as 40% of Americans suffer from a zinc deficiency without even knowing it. Yet even slightly missing out on the zinc in your diet can mean a weakened immune system that will make you more sick more often. We recommend taking at least the daily recommended value of zinc, which is 8mg for women and 11mg for men.


 L-Lysine

L-Lysine is an amino acid that is crucial for your immune system to function. It helps protect your body from viruses and helps prevent stress from weakening your body further.

Research continues to show that adding a sufficient amount of L-Lysine (500mg or more) helps restore your immune system to working order while also helping to decrease stress.

Probiotics

Recent studies continue to prove that a healthy gut is essential to a healthy immune system—80% of your immune system is there! This really means that a truly comprehensive immunity supplement will also include probiotics, and the ones without them will not work nearly as well.

Luckily, modern medicine has shown that certain, clinically proven strains will help you improve your immune health. Two specific clinically proven strains are L. acidophilus and L. rhamnosus, which work to keep your body’s defenses in check. Bonus: if the brand includes a "prebiotic" (probiotic fuel), it's even better.

Doctor-Formulated

It takes specific expertise to create an effective immune system supplement The exact combination of ingredients depends on researchable variables, such as ingredient dosage, delivery method (e.g. pill, powder), and whether ingredients are safe. Look for real doctors specializing in immunology or gastroenterology.

Now that you know there are specific types of ingredients to look for, it’s important to note which things you must avoid in order to fully distinguish between a healthy, safe immunity supplement and one that is ineffective.

What You Should Avoid:

Additives And Fillers

Certain supplement companies will use additives and fillers, lowering the quality of their products. For an immunity supplement, ingredients to look out for include: magnesium stearate, gelatin, and soy lecithin, all of which have no nutritional value and can even possibly cause unwanted side effects.

Putting Full Trust In Amazon Reviews

Though they can be a good resource at times, it’s important to know that up to 65% of Amazon Reviews are written by people paid to write them, sometimes having not even tried the product. Because of the high chance of a review being fake, we recommend being safe and avoiding them altogether.


Lack Of Money-Back Guarantees

If a company believes in the results of its product, you will see this reflected in a generous money-back guarantee. However, if a guarantee is vague, short, or not mentioned, this is usually a sign that this is not a quality product. We suggest a guarantee of at least 60 days.

The Results Are In…

After surveying over 6,300 user reviews and then carefully reviewing 47 brands, only a select few passed our strict testing criteria. Users reported enhanced health—feeling healthier, having more energy, not getting sick as often, and more. Here are our Top 3 Picks:

Top Picks are updated monthly based on testing and analyses:


Top Pick

5 stars

Consumer Survey Recommended

  • 1000mg L-Lysine
  • 20mg zinc
  • Immunologist-formulated
  • Beneficial probiotics and Nutraflora® prebiotic
  • All-natural
  • Zero artificial additives or fillers
  • 90-day money-
    back guarantee

#1: ImmunityMD By 1MD Nutrition™

rating

In our research of the best immune system supplements on the market today, 1MD Nutrition™’s ImmunityMD won our #1 Best Choice Award for a list of reasons.

We verified that ImmunityMD contains an 1000mg of L-Lysine, which is shown to potentially have positive effects on your immunity. It also contains 20mg of zinc and an abundant amount of probiotics (L. acidophilus and L. rhamnosus) to further increase your immune strength.

This product was formulated by a board-certified Immunologist who specializes in immune system health.

It’s non-dairy, non-GMO, gluten free, soy free, preservative free, vegan-friendly, and contains zero additives or fillers.

1MD Nutrition™ offers a 90-Day unconditional money-back guarantee, which shows us this company stands behind its product.

 

Buy Now > >

Rating

4 stars

#2: Daily Immune By Pure Encapsulations

Our second winner is Pure Encapsulations' Daily Immune.

Our reviewers appreciated that this product contains a fantastic quantity of zinc and other helpful nutrients without any additives or fillers. 

What held Daily Immune back was its lack of L-Lysine or probiotics, potentially limiting its effects.

This said, Daily Immune still appears to be a good product with much to offer.

 Buy now > >

Rating

 

#3: Super Lysine+ By Quantum Health

Our final winner is Super Lysine+ Immune Support by Quantum Health.

It has a plentiful amount of L-Lysine in it, which can help boost immune support, along with complementary ingredients like vitamin C and garlic.

What could have made it more effective is if it included zinc or a probiotic strain. It also contains some additives and fillers unlike the other two and has a larger serving size of 3 tablets per serving.

That said its great quantity of L-Lysine and vegan status still make it one of our winners.

 Buy Now > >

Rating

5 stars



#4: Wellness Formula by Source Naturals

Source Naturals' Wellness Formula is another great option. With 23mg of zinc, it provides a potential great boost for immunity support. It also contains vitamin C, elderberry and garlic, which may contribute to a healthier immune system.

This said, we think this product would be better if it contained L-Lysine and at least one strain of probiotic, instead of fillers like gelatin and magnesium stearate, which have no nutritional value. We also thought that it was a bit inconvenient for the serving size to be 6 whole capsules.

Buy Now > >

Rating

5 stars



#5: Kinoko Platinum AHCC by Quality Of Life

Kinoko Platinum AHCC by Quality Of Life relies much upon its main ingredient: a cultured extract of hybridized medicinal mushroom roots. We were intrigued by the concept, and we liked how the product is vegetarian and has no fillers.

This said, the product is expensive ($70 on sale) and doesn’t offer the ingredients we recommend. It has only a 30-day satisfaction guarantee for unopened products, which made us suspect that this company does not truly stand behind its product.

This said, we found it important to include a unique alternative that some shoppers did indeed find helpful.

Buy Now > >



P.S. While 1MD Nutrition™ has the best immune system supplement we've found, we would still love to hear about any others you've tried. If you have had a great experience of your own, please send me an email to Beverly@ConsumersSurvey.org with the details.

Sincerely,
Beverly Gratson,
Senior Health Editor

Back to Our #1 Choice

What We Do

ConsumersSurvey uses a unique three-step approach to reviewing the most popular products in the online marketplace

  • 1. Research First we conduct in-house research with a highly qualified editorial team comprised of individuals who specialize in various fields.

  • 2. SurveyWe survey our readers who have tried the product over time in order to learn from their experiences.

  • 3. OpinionWe monitor public opinion in the world’s most popular marketplaces, from Amazon and eBay, to Bizrate and Pricegrabber.

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