Immunity Plus®: A Fresh Take on Gut Immune Support

Your immune system requires multifaceted support, especially during the cold winter months.

Yet, not every immune support supplement factors in gut health, which studies suggest comprises about 80% of your immune system.

That’s where Country Life Vitamins’ Immunity + shines.

This simple yet effective formula contains clinically studied postbiotics and beta-glucans shown to support the gut immune system and overall microbiome function, helping build more robust year-round resilience.

If you’re looking for a more comprehensive immune support supplement, read on to learn more about the Immunity + formula, how it works, and how to take it for best results.

Understanding the Gut and Immune System Connection

From fighting off pathogens to regulating inflammatory response, the gut plays a pivotal role in supporting and regulating the body’s natural immune response.

But how exactly does the gut influence immunity? 

The current understanding of the communication and interplay between the gut, gut bacteria, and other immune organs and reactions is complex and ever-evolving. 

However, studies have shown it plays a role in:[1-3]

• Maintaining the integrity of the gut lining
• Supporting a normal inflammatory response
• Supporting normal immune cell function
• Hosting a diverse colony of beneficial bacteria, which contributes to overall immune balance

This is a high-level overview; however, it illustrates the interconnected relationship between the gut and immune system.

It also shows why gut health is essential for optimal immune function.

How Country Life Vitamins’ Immunity + Supports the Gut-Immune Connection

From elderberry syrup and echinacea to vitamin C and zinc, there are many immune support supplements available.

“What makes Country Life Vitamins Immunity + different is its targeted formula, which contains research-backed postbiotics, prebiotics, and beta-glucans to maintain your body’s natural defenses against occasional immune challenges while promoting year-round immune support”. Says Country Life Vitamins Head of Research and Development, Rocky Graziose, PhD.

What are Postbiotics & Prebiotics?

Most people are aware of probiotics, but post- and prebiotics are lesser-known and understood.

So, for those who don’t know, here’s a quick explainer.

Postbiotics are a type of compound created from the metabolism of probiotics.[4]

Some examples of postbiotics you may be familiar with include beta glucans, vitamin K, and short-chain fatty acids, like butyrate.

Postbiotics are emerging ingredients of interest in gut health research. Current studies suggest they may help support normal gut and immune function and are valued for their stability and compatibility with other gut-support products.

They are safe, effective, can be taken with probiotics and prebiotics, and are not affected by antibiotics, which is a big plus.

Prebiotics are indigestible compounds found in various fiber-rich foods that ferment in the gut, where they act as a food source for beneficial gut bacteria (probiotics).[5]

Without prebiotics, probiotics literally cannot survive, which can also affect postbiotic activity in the gut.

Common examples of prebiotics in supplements include inulin, Fructo-oligosaccharides (FOS), and galacto-oligosaccharides (GOS).

Breaking Down Country Life Vitamins’ Immunity + Formula for Year-Round Immune Support

We know our customers are health-conscious, supplement-savvy, and care what goes into our formulas.

Here’s what’s in the Immunity + formula.

Wellmune®† beta glucans: 250 mg

Beta glucans are a type of gut-friendly soluble fiber and postbiotic shown to support gut health and immune function and regulation.[6]

“Clinically studied Wellmune® beta-glucans are a unique form of beta glucans derived from the cell walls of baker’s yeast (Saccharomyces cerevisiae) and researched for their role in supporting normal immune function and maintaining overall respiratory health”.[7-12] Graziose explains.

EpiCor®†

EpiCor® is a whole food fermentate postbiotic made from dried yeast. 

Epicor postbiotic promotes a healthy, balanced gut microbiome, which plays a key role in digestive health and nutrient absorption and immune system function.[13-25]

Organic PreticX® xylooligosaccharides: 200 mg

Postbiotics work best in the presence of prebiotics and probiotics, which is why we’ve included PreticX® xylooligosaccharides.

Also known as “XOS”, research suggests this clinically-studied prebiotic may support normal levels of beneficial gut bacteria, such as Bifidobacterium, which is essential for healthy gut microbiome immune function.

How to Take Immunity + 

Immunity + is in capsule form and is safe to take daily for best results.

The recommended daily dosage is two capsules daily, taken with or without food.

To purchase yours, visit our online store and start creating more robust year-round immune resilience today.

IMMUNITY + FAQs

We want you to feel good about taking Country Life Vitamins formulas, which is why we believe in full transparency.

To help, here are some FAQs.

Q: What makes Immunity + different from other immune support supplements?

A: The product’s unique blend of postbiotics, prebiotics, and beta-glucans provides broad-spectrum support for the gut-immune system, helping build year-round resilience.

It can be taken safely alone or with other immune-support supplements, such as vitamin C, zinc, vitamin D3, and probiotics.

Q: Is Immunity + gluten-free?

A: Yes, like all Country Life Vitamins,Immunity + is made in a certified gluten-free facility and certified gluten-free by GFOC.org.

Q: Is Immunity + vegan?

A: Yes,Immunity + is certified vegan by the AVA.

Q: Is the packaging recyclable?

A Yes! Country Life cares about future generations and uses recyclable packaging in our boxes and bottles.

Q: Does this product require refrigeration?

A: No. This is shelf-stable product and can be stored at room temperature, preferably in a dark place, like a cupboard, medicine cabinet, or drawer.

Q: What is the shelf-life of this product?

A: 2 years.

Q Should I take this product with probiotics?

A: You certainly can, but it’s not required for it to work. If you’re interested in probiotics, check out Country Life Vitamins probiotics line here.

Q: When can I find Immunity +?

You can buyImmunity + directly from our website or find it on the shelf of your favorite Country Life retailer starting in January 2026!

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Sources mentioned in this article:

1. “Mucosal viral infection elicits long-lived IgA responses via type 1 follicular helper T cells”. Haniuda, Kei et al. Cell, Volume 188, Issue 24, 6774 - 6790.e21.
2. A bacterial bile acid metabolite modulates Treg activity through the nuclear hormone receptor NR4A1. Cell Host & Microbe. 
3. “Gut-Immune Interplay: Decoding the Microbiome’s Impact on Immunity and Diseases”. Journal of Pharmacy & Bioallied Sciences.
4. “Promising bioactivities of postbiotics: A comprehensive review”. Journal of Agriculture and Food Research.
5. “Prebiotics: Definition, Types, Sources, Mechanisms, and Clinical Applications”. Foods.
6.  “Physiological Perspectives of β-Glucans: The Past, Present, and Future”. Int J Mol Sci.
7. “Baker’s yeast beta glucan supplementation was associated with an improved innate immune mRNA expression response after exercise”. Methods.
8. “Dry blood spot samples to monitor immune-associated mRNA expression in intervention studies: Impact of Baker's yeast beta glucan”. Methods.
9. “Beverage Containing Dispersible Yeast β-Glucan Decreases Cold/Flu Symptomatic Days After Intense Exercise: A Randomized Controlled Trial”. Journal of Dietary Supplements.
10. “Yeast-derived β-1,3/1,6 glucan, upper respiratory tract infection and innate immunity in older adults”. Nutrition.
11. “Oral Supplementation with Baker's Yeast Beta Glucan Is Associated with Altered Monocytes, T Cells and Cytokines following a Bout of Strenuous Exercise”. Frontiers in Physiology.
12. “Follow-up Formula Consumption in 3- to 4-Year-Olds and Respiratory Infections: An RCT”. Pediatrics.
13. “Discovery of edible fermentation product with unusual immune-enhancing properties in humans”. FASEB.
14. “An anti-inflammatory immunogen from yeast culture induces activation and alters chemokine receptor expression on human natural killer cells and B lymphocytes in vitro”. Nutrition Research.
15. “Effects of a modified yeast supplement on cold/flu symptoms”. Urol Nurs.
16. “A double-blind placebo-controlled, randomized pilot study: consumption of a high-metabolite immunogen from yeast culture has beneficial effects on erythrocyte health and mucosal immune protection in healthy subjects”. Open Nutr J .
17. “Comparison of chemical and cell-based antioxidant methods for evaluation of foods and natural products: generating multifaceted data by parallel testing using erythrocytes and polymorphonuclear cells”. J Agric Food Chem.
18. “Immunogenic yeast-based fermentation product reduces allergic rhinitis-induced nasal congestion: a randomized, double-blind, placebo-controlled trial”. Adv Ther.
19. “Immunogenic yeast-based fermentate for cold/flu-like symptoms in nonvaccinated individuals”. J Altern Complement Med.
20. “Antioxidant bioavailability and rapid immune-modulating effects after consumption of a single acute dose of a high-metabolite yeast immunogen: results of a placebo-controlled double-blinded crossover pilot study”. J Med Food.
21. “A dried yeast fermentate prevents and reduces inflammation in two separate experimental immune models”. Evid Based Complement Alternat Med.
22. “A dried yeast fermentate selectively modulates both the luminal and mucosal gut microbiota and protects against inflammation, as studied in an integrated in vitro approach”. J Agric Food Chem.
23. “The HMI module: a new tool to study the Host-Microbiota Interaction in the human gastrointestinal tract in vitro”. BMC Microbiol.
24. “Anti-inflammatory properties of a dried fermentate in vitro and in vivo”. J Med Food.
25. “The Potential of Xylooligosaccharides as Prebiotics and Their Sustainable Production from Agro-Industrial by-Products”. Foods.
26. “Xylooligosaccharide supplementation alters gut bacteria in both healthy and prediabetic adults: A pilot study”. Frontiers in Physiology.
27. “Xylooligosaccharide increases bifidobacteria but not lactobacilli in human gut microbiota”. Food Funct.