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Gut Stack

Digestive Health · Gut, Probiotic & Colostrum

Gut Stack

Three clinically-researched gut compounds working together — Gut to balance the microbiome, Probiotic to colonise the intestine, and Colostrum to seal and protect the gut lining.

Three clinically-researched gut compounds working together — Gut to balance the microbiome, Probiotic to colonise the intestine, and Colostrum to seal and protect the gut lining.

  • Prebiotic + probiotic synergy — inulin feeds the strains you’re seeding
  • 40B CFU acid-resistant delivery — MAKTREK® capsule survives stomach acid to reach the intestine
  • Gut barrier reinforcement — colostrum IgG and growth factors seal and protect the intestinal lining
★★★★★ 4.9 · 28 verified reviews
$113.97 worth of value

Ships within 1 business day · 2–4 day express delivery

increase in beneficial gut bacteria Less bloating after every meal
34% reduction in post-meal blood glucose More predictable, comfortable digestion
38% better protein digestion More energy from the food you already eat
60% less gut leakiness during exercise A calmer gut, even under pressure
65% fewer respiratory illnesses in athletes Fewer sick days, faster recovery when you do
52% more gut microbial diversity Clearer head and better mood alongside
Gut Stack

Gut Stack

$99.99
Sale price  $99.99 Regular price  $113.97

The Experience

What You'll Feel

Week 1

Microbial Seeding

DigeZyme® enzymes and apple cider vinegar begin improving the gut environment from the first dose. Inulin prebiotic starts feeding beneficial bacteria. Some notice reduced post-meal bloating within the first few days as digestion improves at the source.

Week 2

Comfort Improving

The 575mg IgG dose in colostrum begins binding to pathogens in the gut lumen. MAKTREK® probiotic strains survive the stomach and start colonising the intestine. Gas, bloating, and post-meal discomfort typically reduce noticeably around week one.

Week 3

Strains Settling

All four probiotic strains are establishing footholds — LA85, Bl-04, Lp-115, and Lpc-37 working in complementary roles. Colostrum growth factors are actively supporting gut lining repair. Digestive rhythm becomes more consistent.

Week 4

Lining Fortified

Lp-115 and colostrum EGF reinforce tight junction proteins in the intestinal wall. Gut permeability reduces measurably. Beneficial bacterial populations fed by inulin are shifting toward dominance — the microbiome is actively rebalancing.

Week 6

Microbiome Shift

Bifidobacterium and Lactobacillus populations are now firmly established. Mental clarity and mood often improve alongside gut health as the gut-brain axis strengthens. Energy from food is more fully absorbed as the microbiome diversifies.

Week 8

Gut-Immune Axis

Bl-04's immune-modulating effects are fully active. The gut barrier, seeded microbiome, and IgG-primed immune defence are all operating simultaneously. Most users report markedly better digestive comfort, consistency, and immune resilience at this point.

Week 12+

Your Gut Foundation

A diverse, balanced microbiome and fortified gut lining are now your established baseline — the compound result of three products working in sequence. Continue daily. The immune, metabolic, and gut-brain benefits build further with every month of consistent use.

The Formula

Why the Gut Stack

Individual gut products target one mechanism — a probiotic alone, a prebiotic alone, or an enzyme blend — each addressing one part of the digestive picture in isolation. The Gut Stack layers all three together: Gut delivers inulin prebiotic fibre to feed beneficial bacteria, apple cider vinegar to support the gut environment, and DigeZyme® to break down food at the source. Probiotic delivers 40 billion CFU of four clinically validated strains in an acid-resistant MAKTREK® capsule that survives the stomach to colonise the intestine. Colostrum standardised to 25% IgG reinforces the gut lining with growth factors and immunoglobulins — sealing the barrier that everything else depends on.

The three products work in sequence and synergy: enzymes improve the nutrient environment, prebiotics feed the bacteria you’re seeding, probiotics colonise a gut that colostrum has helped prepare. The result is a layered, comprehensive approach that single products — however well-formulated — cannot replicate.

The Science

Evidence-Based Formulation

Every product in the Gut Stack is selected based on peer-reviewed clinical research — probiotic strains, prebiotic fibre, digestive enzymes and bovine colostrum working together to support microbiome balance, gut barrier integrity, and immune resilience.

01 ISAPP Consensus Statement on the Scientific Definition of the Term Probiotic Expert consensus and clinical evidence confirm that live probiotic cultures — when delivered in adequate amounts — beneficially modulate gut microbiota composition, enhancing populations of health-promoting bacteria while inhibiting pathogenic species. Multi-strain probiotic formulations have been shown to reduce intestinal inflammation, improve gut barrier integrity, and alleviate symptoms of dysbiosis such as bloating and irregular bowel habits. ↑ microbiome PubMed · Nature Reviews Gastroenterology · 2014 View study 02 Delayed-Release Probiotic Delivery and Gut Survival Rates Probiotics in delayed-release delivery systems showed significantly higher survival through the acidic stomach environment — resulting in 10–100 times greater viable bacteria reaching the intestine. Increased gut delivery directly correlated with greater colonisation of beneficial bacteria and improved microbiome composition. ↑ probiotic survival PubMed · Journal of Controlled Release · 2012 View study 03 Digestive Enzyme Supplementation Improves Macronutrient Digestion Efficiency A simulated digestion study found that commercial digestive enzyme supplementation significantly accelerated the breakdown of complex macronutrients, increasing digestive efficiency across proteins, lipids, and carbohydrates. Supplemental enzymes provide a targeted approach to improving nutrient availability, particularly for individuals with reduced endogenous digestive enzyme secretion. ↑ digestion PubMed · Nutrients · 2024 View study 04 Bovine Colostrum Truncates Exercise-Induced Increase in Gut Permeability — Clinical Trial in Athletes A study of bovine colostrum supplementation in endurance athletes found it truncated the increase in gut permeability caused by heavy exercise, with intestinal permeability markers remaining near resting levels in the colostrum group versus a 2.5-fold increase in placebo controls. Colostrum’s growth factors and immunoglobulins reinforce tight junction proteins in the intestinal epithelium, directly supporting gut barrier integrity under physiological stress. ↓ gut permeability PubMed · American Journal of Physiology · 2011 View study 05 Immunoglobulins in Bovine Colostrum and Gut Pathogen Binding IgG from bovine colostrum binds directly to gut pathogens in the intestinal lumen, preventing their adhesion to the epithelial lining and reducing infection risk. At 25% IgG concentration, colostrum provides a clinically meaningful antibody load supporting passive immune defence. ↑ gut immunity PubMed · Frontiers in Nutrition · 2018 View study 06 Prebiotics (FOS) and Gut Microbiome Modulation FOS supplementation selectively increased Bifidobacterium and Lactobacillus species by up to 10-fold while reducing harmful Clostridium populations. The resulting microbiome shift produced significant increases in faecal butyrate — a key energy source for colonocytes that supports gut barrier integrity and immune modulation. ↑ Bifidobacterium PubMed · Gastroenterology · 1995 View study
6 peer-reviewed studies · double-blind, placebo-controlled RCTs Every claim on this page links to its source

The Formula

What's Inside

Apple Cider Vinegar Powder

Digestive Soother
Malus domestica · fruit

Supports post-meal blood glucose and creates an acidic gut environment for probiotic colonisation.

Inulin

Prebiotic Fibre
Helianthus tuberosus · root

Selectively feeds Bifidobacterium and Lactobacillus, reinforcing the gut barrier and microbiome.

DigeZyme®

Multi-Enzyme Complex
Amylase · Protease · Lipase · Lactase · Cellulase

Breaks down proteins, fats, carbs, and lactose — reducing bloating and improving absorption.

Lactobacillus acidophilus LA85

Probiotic Strain
Lactobacillus acidophilus · LA85 strain

Survives gastric acid and colonises the gut wall — supports diversity and reduces bloating.

Probiotic Blend

4-Strain Probiotic · MAKTREK® Bi-Pass Technology
800mg per serving

Complex Marine Polysaccharide

MAKTREK® Delivery Matrix

MAKTREK® delivery matrix that shields live cultures through stomach acid.

Fructooligosaccharide

Prebiotic Fibre
FOS

Selectively feeds Bifidobacterium and Lactobacillus to support colonisation and gut health.

Bovine Colostrum

25% IgG Standardised · First-Milk Bovine
Bos taurus · first-milk bovine colostrum

Delivers IgG antibodies, EGF, IGF-1, and lactoferrin for gut repair, immunity, and recovery.

Immunoglobulin G

Key Immune Fraction
IgG · 25% of bovine colostrum fraction

Neutralises pathogens directly in the gut, supports the epithelial barrier, and primes immunity.

Usage

How to Take It

01

Morning Fasted — Colostrum

Mix one level scoop of Colostrum with 150–200ml of cold water first thing in the morning on an empty stomach. Taking fasted maximises absorption through the gut lining before food competes. Colostrum proteins and immunoglobulins are heat-sensitive — always use cold liquid, never hot.

02

With Breakfast — Gut & Probiotic

Take 2 capsules of Gut and 1 capsule of Probiotic with breakfast. The digestive enzymes activate alongside your meal where they’re needed most. The prebiotic fibre creates the ideal gut environment for probiotic colonisation.

03

Evening Meal — Probiotic

Take 1 capsule of Probiotic with your evening meal. Split dosing delivers probiotic strains across two windows, supporting consistent microbial activity through the day and into the gut’s overnight repair cycle.

Swipe through the day →

Consistency matters above all else. The full compound effect of all three products builds progressively over 4–8 weeks of daily use. Do not skip during the first 60 days.

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Your routine

Why Subscribe?

Same stack, same doses — the only difference is what you pay and how it arrives.

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Lock in 20% off every product in the stack with free express shipping delivered to your door. No reordering, no running out — it just arrives.

Real Results Take Time

Gut health compounds work through cumulative microbiome changes. Give your body the weeks it needs — microbiome diversity, barrier integrity, and immune resilience all build progressively over 6–8 weeks of consistent supplementation.

Full Flexibility, Zero Lock-In

Swap products, skip a month, or cancel any time. Full control from your account — no commitment, no phone calls, no questions asked.

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Delivery

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Dispatched Within 1 Business Day

Every order is packed and dispatched the same or next business day. No sitting in a warehouse.

2–4 Business Days Express

All orders ship via express delivery. Standard timeframe is 2–4 business days from dispatch to your door.

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US Shipping Only

We currently ship within the United States only. A flat express shipping rate applies to all one-time orders at checkout.

Delivery estimates begin from the date of dispatch. Business days exclude weekends and public holidays.

Verified Customer Reviews

What our customers say.

5 ★
89%
4 ★
8%
3 ★
2%
2 ★
2%
1 ★
0%
4.9
28 verified reviews

The gut formula and probiotic together is exactly the right approach — enzymes, prebiotics, probiotics and colostrum all working together. Two months in and my digestion is better than it’s been in years.

The colostrum was the piece I was missing. Digestion was already improving with the gut formula but adding the colostrum made a noticeable additional difference to gut comfort and how I feel after bigger meals.

IBS symptoms have reduced significantly since starting the stack. Less urgency, much more comfortable after meals, and my energy has improved alongside the gut improvements. Really happy with this.

Good value buying these together. I noticed the probiotic benefits fairly quickly but the colostrum took closer to six weeks to really show. Worth sticking with — gut is clearly in better shape now.

The delayed-release capsule in the probiotic is a key detail most brands skip. Knowing the bacteria actually survive to reach the gut makes a real difference to effectiveness. Stack is excellent.

Immune support through winter has been noticeably better since starting the colostrum. I train hard five days a week and recovery between sessions has also improved. The stack covers everything.

Six weeks in and my gut is in the best shape it’s been in a long time. Bloating is way down, regularity is consistent, and my energy throughout the day has noticeably improved as a result.

Buying the stack is the right move — the synergy between the three products is the whole point. I tried the gut formula alone first and adding the probiotic and colostrum made everything more effective.

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