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Protect, Defend, and Thrive: Discover Bulletproof and Balanced Immunity with Immune Shield

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Meet Immune Shield from Adapt Naturals

Protect, defend, and thrive with nature’s most powerful immunity nutrients and superfoods!

Say goodbye to frequent seasonal sniffles, virulent viruses, and chronic nutrient deficiencies that contribute to low immune function and hyperactive immune responses. 

To launch a successful attack against pathogens and irregular cells, your body needs more than 23 essential vitamins, minerals, botanicals, and superfoods. Vitamin C and zinc alone won’t cut it. 

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With Immune Shield from Adapt Naturals, you can:

  • Strengthen your defenses against seasonal immune challenges. 
  • Shorten recovery time and lessen symptom severity.
  • Soothe and balance immune hyperactivity.
  • Nourish and support your gut microbiome.

Immune Shield is backed by more than 15 years of research and clinical experience fueled by high-quality, evidence-based ingredients you can trust.

Real Stories of Health and Happiness

  • "I am now taking Bio-Avail Myco more consistently to enhance immune function."

  • “Purchased [Bio-Avail Multi] for my 18 yr old son. His friends and classmates became ill with the respiratory flu, he did not.”

  • "I like knowing my immune system is supported and helping to protect me especially during cold and flu season [with Bio-Avail Myco]."

  • Restore Key Nutrients

    Get over 50 essential vitamins, minerals, amino acids, and phytonutrients that promote optimal immune function and overall vitality and health.

  • Nourish Your Gut

    Restore gut barrier integrity and support a healthy microbiome (80% of our immune system resides in our gut, so a happy gut = a strong immune system).

  • Protect and Balance

    The nutrients in Immune Shield support a stronger and more balanced immune response—rather than “boosting” immunity (which can be problematic).

Introducing Immune Shield and Immune Shield Advanced

Meet two bundles designed to supercharge your immune function and build your defenses.

Immune Shield

Immune Shield contains colostrum, lactoferrin, beta-glucan, superfood mushrooms, and vitamins D3 and K2. These nutrients have been shown in countless studies to bolster immune defense against pathogens, soothe and dampen immune hyperactivity, and support overall health and vitality.

Bio-Avail Colostrum+

Three of the most potent immune-supporting nutrients—grass-fed colostrum, lactoferrin, and beta-glucan—in a single formula.

✔️Rich in immunoglobulins and peptides that defend against pathogens
✔️Supports gut barrier integrity and nourishes the microbiome
✔️Balances immune responses and prevents hypersensitivity

Bio-Avail Myco

A full-spectrum blend of eight organic, superfood mushrooms that protect against pathogens while reducing immune hyperactivity.

✔️Rich in beta-glucans that activate immune defense
✔️Trains the body’s cells to react quickly to pathogens
✔️Supports a healthy gut microbiome

Bio-Avail D3/K2

Restore optimal vitamin D3 and K2 levels with this clean, easy-to-absorb liquid formula.

✔️Boosts production of antimicrobial peptides
✔️Promotes healthy T-cell response for stronger defenses
✔️Reduces risk of seasonal respiratory infections

Immune Shield Advanced

The three products in Immune Shield, plus our best-selling whole-food multivitamin and omega-3 supplement (with bioavailable curcumin and black seed oil) for even more potent and comprehensive immune support. Immune Shield Advanced is the best option for those seeking the highest level of protection. 

Bio-Avail Multi

A powerful blend of vitamins, minerals, and phytonutrients that support immune health, energy, and vitality.

✔️Contains over 20 nutrients that directly support immune function
✔️Protects immune cells and tissues from free radicals
✔️Helps prevent hyperactive immune responses

Bio-Avail Omega+

Contains three powerful nutrients that support immune function: ultra-pure fish oil and the most bioavailable forms of curcumin and black seed oil.

✔️Improves the function of T cells, B cells, and natural killer cells
✔️Kills pathogens and inhibits their replication and ability to infect cells
✔️Supports a more balanced and regulated immune response

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Immunity Shield was formulated by Chris Kresser, your
Trusted Health & Wellness Guide

Founder & Functional Medicine Clinician

  • Globally renowned expert with over 15 years of experience
  • Dedicated to helping people improve their health by addressing modern challenges and nutrient gaps

Author & Educator

  • Treated thousands of patients
  • Trained more than 2,000 healthcare professionals
  • Gained valuable insights into functional medicine and nutrition

Discover the Immune Shield Advantage

Natural, bioidentical
Artificial, synthetic
Maximally absorbable
Low absorption
Health Focus
Addresses root causes
Addresses symptoms
Clinical Background
15 years in-clinic
Not usually
Supports soil health
Disregards soil health
Single-use plastic
Functional Medicine expert

Signs You Need Immune Shield

You get sick with viral or respiratory illnesses more than twice a year.

You experience moderate to severe symptoms when you get infections.

When you get sick, your symptoms last for more than a week.

You have a hyperactive immune response against food or environmental antigens.

You don’t regularly consume organ meats, mushrooms, fish and seafood, pasture-raised dairy, brightly colored fruits and vegetables, and other foods that support immunity.

What You'll Feel When Taking an Immune Shield Bundle

  • Stronger, more balanced immune system

  • Less frequent respiratory and seasonal infections

  • Shorter recovery time from infections

  • Improved energy, better sleep, stable moods, and increased clarity

  • Dramatic improvements in overall health and vitality

Immune Shield

Immune Shield

Foundational immune support to promote overall health and vitality

$146.68 $132.01

Save 10%!

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Immune Shield Advanced

Immune Shield Advanced

More potent and comprehensive immune support for those seeking the highest level of protection.

$268.25 $214.60

Save 20%

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60-Day Money-Back GuaranteeWe stand behind the quality of our products, and we want you to be completely satisfied with your order.

The Adapt Naturals Standard

In our increasingly toxic world, the last thing you want to worry about is a lot of artificial junk in your supplements. Adapt Naturals supplements are made with the cleanest possible ingredients, without gluten or GMOs. Our products are manufactured in a U.S. facility that meets the NSF’s rigorous GMP regulatory standards.