Gut Health Stack
Nourish, restore, and protect your gut
Gut Health Stack
Nourish, restore, and protect your gut
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Nourish and restore your gut lining with Bio-Avail Colostrum+'s growth factors, immunoglobulins, and prebiotics
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Support digestive function, microbiome health, and immune balance with Biome Protect's specialized blend of postbiotics, prebiotics, and immune-supporting compounds
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Support gut integrity, joint health, and connective tissue with Bio-Avail Collagen+'s hydrolyzed collagen peptides and supporting nutrients
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Experience the transformative benefits of optimal gut health for overall wellness and vitality
Exclusive Subscription Perks
| Order # | Gift | Value |
|---|---|---|
| 2 | FREE Storage Bottle | $5-$7 |
| 4 | FREE Adapt Naturals Frother | $28.00 |
| 6 | FREE Adapt Naturals Trucker Hat | $29.99 |
| 8 | Special Gift | $50 Value |
REINFORCE GUT BARRIERS
Strengthen and seal a damaged gut lining
Bio-Avail Colostrum+ provides growth factors and immunoglobulins to heal and protect the intestinal wall.
OPTIMIZE DIGESTION
Promote smooth, comfortable digestion
Biome Protect supports gut microbial balance, while Bio-Avail Collagen+ provides essential amino acids for gut tissue repair.
NOURISH YOUR MICROBIOME
Cultivate a thriving gut flora
Bio-Avail Colostrum+ delivers prebiotics and immune factors to support beneficial bacteria and combat pathogens.
Maximize your nutritional status
Biome Protect supports gut barrier function and microbial diversity, while Bio-Avail Collagen+ strengthens the gut lining to improve nutrient uptake.
Powerful Nutrients & Vitamins
Grass-Fed Bovine Colostrum
Bio-Avail Colostrum+ delivers 2.5 grams of nutrient-rich, cold-processed colostrum to restore the gut lining and nourish the microbiome.
Certified Grass-Fed Collagen Peptides
Bio-Avail Collagen+ provides easily absorbed collagen peptides to support gut lining integrity and connective tissue health.
Lactoferrin (Bioferrin®)
100 mg of lactoferrin in Bio-Avail Colostrum+ helps combat gut pathogens and promote a healthy microbiome balance.
BACILLUS COAGULANS (as LactoSpore®) (2 Billion CFU)
This spore-forming probiotic survives stomach acid to reach the intestines intact. It helps balance the gut microbiome, supports digestive health, and enhances immune function. Bacillus coagulans has also shown potential benefits for cognitive function and mood.
TRIBUTYRIN (as CoreBiome®) (300 mg)
Tributyrin is a highly bioavailable form of butyrate, a short-chain fatty acid that plays a crucial role in gut health. It supports intestinal barrier function, promotes cellular energy, and improves metabolic and brain health. CoreBiome® is designed to maximize butyrate absorption and utilization in the body.
FORTIPHAGE™ PREBIOTIC (15 mg)
FortiPhage™ is a next-generation prebiotic that works at a much lower dose than traditional prebiotics—without the side effects often associated with fiber. It contains bacteriophages that selectively reduce harmful bacteria while promoting the growth of beneficial species, supporting a balanced gut microbiome.
POLYPHENOL BLEND (200 mg)
Our optimized blend includes extracts from pomegranate, grape, cranberry, and blueberry. These polyphenol-rich extracts rejuvenate cells, support gut health, and enhance cognitive function and cardiovascular health.
Beta-Glucan (Wellmune®)
Bio-Avail Colostrum+ contains 200 mg of Wellmune® beta-glucan to train the gut immune system for efficient, balanced responses.
Signs You Need Gut Health Stack
Bloating, gas, and abdominal discomfort
Heartburn, acid reflux, or indigestion

Irregular bowel habits

Food sensitivities and intolerances
Nutrient deficiencies despite a balanced diet

Skin issues of all kinds
Mood imbalances and brain fog
What You'll Feel Using Gut Health Stack
More comfortable, regular digestion
Relief from bloating, reflux, and discomfort
Improved bowel function and stool consistency
Enhanced tolerance to a wider variety of foods
Better nutrient absorption and nourishment
Clearer, healthier, more radiant skin
Brighter mood and sharper cognitive function
Discover the Gut Health Stack Advantage
90-Day Money Back Guarantee
We're confident you'll love our products, but if you're not completely satisfied, we offer a 90-Day, 100% money-back guarantee on all purchases. Simply contact us for a full refund, no questions asked. Buy with confidence knowing you're covered by our guarantee.
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.
Third-Party Lab-Tested with Transparent Results
We conduct third-party testing on all our products to verify their purity, potency, and safety. Most importantly, we transparently share these results with our customers by posting Certificates of Analysis (COAs) and test results directly on our website. We want you to have full confidence that you’re getting exactly what you think you are with each purchase.
See Test Results
Meet 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
Unlock Your Body's Innate Healing Potential
Revitalize Your Digestive Wellness with the Gut Health Stack—Restore, Protect, and Optimize Your Gut
Get Healthier & Happier - Try Now
Good For You—And the Planet
You can’t have healthy humans without a healthy planet. That’s why Adapt Naturals is working toward zero plastic and landfill waste in our supply chain.
In the fall of 2023, we started transitioning our packaging to 100% compostable, stand-up pouches. They’re made from cellulose (wood pulp) and are free of PLA, BPA, PFAS, phthalates, and other harmful chemicals. They’re printed with non-toxic, compostable ink. The pouches are so clean and biodegradable that you can put them in your backyard or curbside compost bin!
Our sustainable packaging initiative will prevent over 120,000 plastic bottles from ending up in a landfill or the oceans. Thank you for being part of the solution and helping Adapt Naturals protect the beauty of our natural environment!
Your Questions Answered
The Gut Health Stack takes a comprehensive approach to digestive wellness by targeting multiple aspects of gut function. Bio-Avail Colostrum+ helps restore and strengthen the gut lining, nourish the microbiome, and balance gut immunity. Biome Protect supports microbial diversity, gut barrier function, and immune balance. Bio-Avail Collagen+ provides essential amino acids to support gut tissue integrity and repair. Together, these products work synergistically to optimize digestive health from the inside out.
While this stack is not a cure or treatment for any specific condition or disease. However, it can be a powerful tool for supporting digestive health in those with a wide range of gut issues. The Gut Health Stack can help alleviate symptoms and address underlying imbalances associated with many common digestive issues by restoring the gut lining, supporting digestive function, nourishing the microbiome, and promoting regularity. It's always best to work with a healthcare practitioner to determine the best course of treatment for your individual needs.
Bio-Avail Colostrum+ is made from bovine sources and is therefore not suitable for those with sensitivities or allergies to dairy or beef. Biome Protect and Bio-Avail Collagen+ are made without gluten, dairy, soy, and nuts but are not certified to be free of those allergens. As always, carefully review the product label and consult your healthcare provider before starting any new supplement regimen, especially if you have known food sensitivities or allergies.
Individual responses vary, but many people notice improvements in digestion, regularity, and gut comfort within the first few weeks of consistent use. However, the full benefits of the Gut Health Stack may take several months to become apparent, particularly when restoring the gut lining, balancing the microbiome, and seeing the systemic effects of improved gut health. For best results, we recommend taking this stack daily for at least 3-6 months, ideally as part of a long-term gut wellness program.
If you are taking antibiotics or other medications, it's important to consult your healthcare provider before starting this or any new supplement regimen. While the ingredients in this stack are generally safe and well-tolerated, some may interact with certain medications or alter their effectiveness. In particular, the immunoglobulins in Bio-Avail Colostrum+ may interfere with the absorption of certain drugs. Your provider can help you determine if the Gut Health Stack is right for you and guide you on the best dosage and timing in relation to your medications.
No more bloat, lower inflammation
Hey Joshua,
No more bloat and lower systemic burden from the full Gut Health Stack working together is such a clean and meaningful result! The Biome Protect rebalancing the microbiome environment alongside the other products in the stack supporting the gut lining and overall health is exactly the comprehensive approach Chris designed. Thank you for sharing!
Have been using the gut stack for about five months now, and I am absolutely seeing a difference with better digestion, less joint pain, and better sleep. Thank you!
Hey Jill,
Five months in and better digestion less joint discomfort and better sleep all from one comprehensive stack...that is the whole picture coming together beautifully! The gut stack working on the microbiome and gut lining from multiple angles at once creates a foundation that ripples out into so many other systems in the body and your experience is a perfect example of that. Thank you so much for sharing!'
I have been taking the Collagen, Colostrum, and Biome Protect for a few months. While I believe these products are doing something good for me, I have not seen the results, yet, that I want to see. I am still experiencing a lot of bloating after meals. I faithfully take the supplements every day and have faith that I will eventually see the results I am looking for. I also continue to analyze what might be the root problem. Thank you for creating quality products!
Hey Christina,
We really appreciate your faith in the products and your commitment to taking them every single day and we want to make sure we are being helpful here. A few months in with persistent bloating after meals is worth looking at a little more closely and your instinct to keep analyzing the root cause is exactly right. For some people there can be underlying food sensitivities or triggers that a supplement alone cannot fully address and identifying and removing those can be the missing piece that allows everything else to really do its job. We would always encourage looping in your healthcare provider to help dig into what might be driving the bloating from the root cause level. And please do not hesitate to reach out to our support team if you want to troubleshoot further because we genuinely want to see you get the results you are hoping for. Thank you for your trust and for sharing!
I have been dealing with digestive and gut problems for many many years and I got to a point where I could have said that I tried absolutely everything, but nothing was helping. Worked with doctors, with an alternative practitioner, but really, nothing helped. I was advised to take different kind of probiotics, but they were making my symptoms even worse.
The only thing that ever helped is the Gut Health Stack. Even after 2 weeks I started to see and feel an improvement. I am on my 4th month now and I can finally say I am living again. It completely changed my quality of life. I can't recommend these products enough. Thank you, Adapt Naturals!
Hi Diana,
Thank you so much for taking the time to share your story—made our day! After years of struggling and trying everything without relief, we can only imagine how frustrating and discouraging that journey must have been.
We're absolutely thrilled that the Gut Health Stack has given you your quality of life back. Your experience highlights exactly why we formulated these products to work together. The combination of Biome Protect and Bio-Avail Colostrum+ addresses gut health comprehensively—Biome Protect's 4-in-1 approach (prebiotics, probiotics, postbiotics, and polyphenols) supports the entire gut ecosystem, while Colostrum+ strengthens the gut barrier and provides immune support. Together, they create the foundation for true digestive healing.
Bacillus Coagulans is exceptionally well-tolerated, even for those with the most sensitive digestive systems.
The fact that you noticed improvements within just 2 weeks and continued to see benefits over 4 months shows your gut is truly healing from the inside out. Stories like yours are exactly why we do what we do. Thank you for trusting us with your gut health journey, Diana. We're honored to be part of your healing!
I love the products — but I extremely dislike the fact that you guys keep sending tiny little scoopers in these bags.
With hands as large as mine, I cannot get my hand in the bag without making a mess or getting stuck when trying to dig out the scooper that is always buried deep within the bag.
So I purchased the glass jars thinking that would solve my issue, but no. The length of the scooper only extends just barely over an inch meaning I can’t use it with the jars either because it’s not long enough
On more than a few bags now I’ve wasted a lot of product because of mishaps dealing with this tiny little scooper and bag style. I’m all for the recyclable material, but it is a huge pain and the jars that were supposed to be a solution are not compatible with your current delivery system.
The product is good. But the daily frustration is real
Hey Chris,
We really appreciate you taking the time to share this honest feedback—and we're genuinely sorry for the daily frustration. That's not the experience we want you to have, especially when you love the products themselves.
You're absolutely right—this is a design challenge we're aware of. We actually tried longer scoops previously, but they were puncturing the bags during shipment and causing colostrum to spill everywhere—which created a whole different set of problems. The shorter scoop solved that issue but created the ones you're experiencing now with access and compatibility with the jars.
Here's what we'd suggest in the meantime:
Use your own long-handled measuring spoon (like a tablespoon) for scooping—it'll work better with both the bags and jars and help you avoid the mess and waste.
We're working on a better solution! We know the current setup isn't ideal, and we're committed to finding packaging that works better
- 5 stars: 6 (60%)
- 4 stars: 1 (10%)
- 3 stars: 3 (30%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
No more bloat, lower inflammation
Hey Joshua,
No more bloat and lower systemic burden from the full Gut Health Stack working together is such a clean and meaningful result! The Biome Protect rebalancing the microbiome environment alongside the other products in the stack supporting the gut lining and overall health is exactly the comprehensive approach Chris designed. Thank you for sharing!
Have been using the gut stack for about five months now, and I am absolutely seeing a difference with better digestion, less joint pain, and better sleep. Thank you!
Hey Jill,
Five months in and better digestion less joint discomfort and better sleep all from one comprehensive stack...that is the whole picture coming together beautifully! The gut stack working on the microbiome and gut lining from multiple angles at once creates a foundation that ripples out into so many other systems in the body and your experience is a perfect example of that. Thank you so much for sharing!'
I have been taking the Collagen, Colostrum, and Biome Protect for a few months. While I believe these products are doing something good for me, I have not seen the results, yet, that I want to see. I am still experiencing a lot of bloating after meals. I faithfully take the supplements every day and have faith that I will eventually see the results I am looking for. I also continue to analyze what might be the root problem. Thank you for creating quality products!
Hey Christina,
We really appreciate your faith in the products and your commitment to taking them every single day and we want to make sure we are being helpful here. A few months in with persistent bloating after meals is worth looking at a little more closely and your instinct to keep analyzing the root cause is exactly right. For some people there can be underlying food sensitivities or triggers that a supplement alone cannot fully address and identifying and removing those can be the missing piece that allows everything else to really do its job. We would always encourage looping in your healthcare provider to help dig into what might be driving the bloating from the root cause level. And please do not hesitate to reach out to our support team if you want to troubleshoot further because we genuinely want to see you get the results you are hoping for. Thank you for your trust and for sharing!
I have been dealing with digestive and gut problems for many many years and I got to a point where I could have said that I tried absolutely everything, but nothing was helping. Worked with doctors, with an alternative practitioner, but really, nothing helped. I was advised to take different kind of probiotics, but they were making my symptoms even worse.
The only thing that ever helped is the Gut Health Stack. Even after 2 weeks I started to see and feel an improvement. I am on my 4th month now and I can finally say I am living again. It completely changed my quality of life. I can't recommend these products enough. Thank you, Adapt Naturals!
Hi Diana,
Thank you so much for taking the time to share your story—made our day! After years of struggling and trying everything without relief, we can only imagine how frustrating and discouraging that journey must have been.
We're absolutely thrilled that the Gut Health Stack has given you your quality of life back. Your experience highlights exactly why we formulated these products to work together. The combination of Biome Protect and Bio-Avail Colostrum+ addresses gut health comprehensively—Biome Protect's 4-in-1 approach (prebiotics, probiotics, postbiotics, and polyphenols) supports the entire gut ecosystem, while Colostrum+ strengthens the gut barrier and provides immune support. Together, they create the foundation for true digestive healing.
Bacillus Coagulans is exceptionally well-tolerated, even for those with the most sensitive digestive systems.
The fact that you noticed improvements within just 2 weeks and continued to see benefits over 4 months shows your gut is truly healing from the inside out. Stories like yours are exactly why we do what we do. Thank you for trusting us with your gut health journey, Diana. We're honored to be part of your healing!
I love the products — but I extremely dislike the fact that you guys keep sending tiny little scoopers in these bags.
With hands as large as mine, I cannot get my hand in the bag without making a mess or getting stuck when trying to dig out the scooper that is always buried deep within the bag.
So I purchased the glass jars thinking that would solve my issue, but no. The length of the scooper only extends just barely over an inch meaning I can’t use it with the jars either because it’s not long enough
On more than a few bags now I’ve wasted a lot of product because of mishaps dealing with this tiny little scooper and bag style. I’m all for the recyclable material, but it is a huge pain and the jars that were supposed to be a solution are not compatible with your current delivery system.
The product is good. But the daily frustration is real
Hey Chris,
We really appreciate you taking the time to share this honest feedback—and we're genuinely sorry for the daily frustration. That's not the experience we want you to have, especially when you love the products themselves.
You're absolutely right—this is a design challenge we're aware of. We actually tried longer scoops previously, but they were puncturing the bags during shipment and causing colostrum to spill everywhere—which created a whole different set of problems. The shorter scoop solved that issue but created the ones you're experiencing now with access and compatibility with the jars.
Here's what we'd suggest in the meantime:
Use your own long-handled measuring spoon (like a tablespoon) for scooping—it'll work better with both the bags and jars and help you avoid the mess and waste.
We're working on a better solution! We know the current setup isn't ideal, and we're committed to finding packaging that works better
Day 1 I actually bloated worse than ever but significantly less every day since! More importantly though, I’m finally having regular bowel movements. I know this is a lot but it’s a review I’d appreciate, so -
I had diarrhea every morning for months and since taking this I haven’t once and I am beyond grateful!! I was already taking collagen, colostrum and butyric acid from other (“reputable”) brands and was no longer bloating too badly but still had the loose stools. THIS MADE ALL THE DIFFERENCE!!!! Thank you!!!
Hi Elliott!
WOW, thank you so much for sharing this detailed review! We're absolutely thrilled reading about your transformation. After months of struggling with diarrhea every morning, to now having regular bowel movements! That's life-changing, and we're beyond grateful to have been part of your healing journey!
First, that initial Day 1 bloating you experienced is actually not uncommon—it can happen as your gut microbiome begins to rebalance and adjust to the new beneficial bacteria and compounds. The fact that it decreased significantly each day after shows your body was responding and healing!
Here's what makes us really excited: You were already taking collagen, colostrum, and butyric acid from other brands, but our Gut Health Stack (Biome Protect + Colostrum+ and Collagen+) made all the difference. That speaks to the quality and synergy of our formulation:
Biome Protect's Bacillus coagulans is a specific well-studied strain that's exceptionally well-tolerated and effective. The CoreBiome® tributyrin delivers butyrate throughout your digestive tract, the bacteriophage prebiotic works at just 15mg without causing gas, and the polyphenols support beneficial bacteria. Our Colostrum+ provides 2.5g per serving (2.5x more than most brands) of whole, grass-fed colostrum, plus we've added 100mg of lactoferrin and 250mg of beta-glucan for enhanced gut barrier support. And lastly, our Collagen+ contains SOLUGEL® collagen peptides which are hydrolyzed, meaning they are broken down into smaller peptides, making them easier for the body to digest and assimilate. Their ~2 kDa molecular weight also makes the peptides bioactive.
Together, they address gut health from every angle—and clearly, the quality and combination made the breakthrough for you!
Thank you for being so detailed and honest in your review. Stories like yours remind us why we do what we do!
Love these products!
Hi there,
Thank you for the 5-star review! We're so thrilled to hear that you love the Gut Health Stack! It means the world to us. Thank you for being part of the Adapt Naturals community!
Overall the gut health stack seems to be resolving some issues but the bloating I get if I eat yogurt is insane. Worst bloating ever. Unbelievably uncomfortable. I realize the answer is probably to stop eating yogurt but that doesn't seem like a reasonable solution when yogurt (plain, best quality, pure yogurt) is such good food. I am keto and already don't eat so many foods.
Hi CB,
Thank you for sharing your experience—and we’re glad to hear the Gut Health Stack is starting to help with some of the issues you’ve been facing. That said, we’re really sorry to hear about the intense bloating with yogurt. That definitely doesn’t sound comfortable, and we know how frustrating it can be—especially when you’re already following a restrictive diet like keto.
Both Biome Protect and Bio-Avail Colostrum+ are designed to help improve tolerance to foods over time by supporting a stronger gut lining and restoring microbial balance. However, during that healing process, the gut can sometimes become more sensitive before it becomes more resilient—especially to foods like dairy. This is often temporary, but we always recommend checking in with a practitioner if symptoms persist.
We want you to feel fully supported in your journey, and you're always covered by our 90-day money-back guarantee if you'd prefer to pause or reevaluate. Our customer experience team is here to help if you'd like to explore next steps.
Thanks again for giving the protocol a try—and for trusting Adapt Naturals with your health.
I totally trust Adapt Naturals but this product actually made my bloating and gas significantly worse. I continued to take it for two weeks, just to see if there was some kind of adjustment, but the bloating was so unbearable I had to finally discontinue. I have no doubt that this product may help many, but it clearly was not for me.
Hi Dana,
We’re so sorry to hear this product made your bloating worse—we take that feedback seriously. Sometimes, as the gut microbiome shifts, temporary bloating can occur, but it shouldn’t feel unbearable. You’re fully covered by our 60-day money-back guarantee. Can you please do us a favor and email support@adaptnaturals.com with your email to escalate your refund. While Biome Protect works well for many, everyone’s gut is unique. Thank you for giving it a shot! Talk soon :)
This seems like a really high quality system from the eco friendly packaging to each individual product - no overpowering flavors or fake sweeteners, just the collagen and colostrum powders that are easily masked by my yogurt. I’m not sure if I’m seeing results just yet but this sort of thing can definitely take time. Pleased so far
Hi Alexa,
We’re so glad you’re enjoying the Gut Health Stack! Collagen and colostrum are both simple, foundational ingredients that help support daily wellness, and it’s amazing to hear they blend so easily into your yogurt without overpowering flavors. You’re right that sometimes it can take a little time to notice changes, but we’re thrilled you’re pleased so far.