My evenings have completely changed
I used to be useless after 7pm. Now I have energy into the evenings and actually enjoy time with my family rather than just surviving until bedtime. Stack has genuinely changed my quality of life.
Nour M.
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Amino Acid750mg
Glutamine
GUT REPAIR & IMMUNE RESILIENCE
Dairy freeGluten freeSoy freeGMO free
$14.99/mo
30-day supply
Key Benefits
1
Supports gut lining integrity and repair
2
Promotes immune cell function
3
Aids post-exercise muscle recovery
4
Supports healthy digestive function
Wellness Goals
Recommended Dose
750mg
Take one 750mg capsule daily. For gut health support, take on an empty stomach (first thing in the morning or between meals). For exercise recovery, take immediately after training. Glutamine is stable and well-tolerated at this dose.
Get your personalized dose⚗️
3rd Party Tested
🩺
Doctor Formulated
🛡️
cGMP Certified
The Details
Why you'll love it
Your gut lining replaces itself every 3-5 days, and it burns through glutamine faster than any other fuel to make that happen. The cells lining your intestines (enterocytes) rely so heavily on glutamine that when levels drop — from stress, intense exercise, or illness — gut permeability can increase, allowing unwanted molecules to slip through the barrier.
This is why glutamine has become a cornerstone of gut health protocols. Research shows it supports the tight junctions between intestinal cells, promotes healthy gut barrier function, and supports repair of damaged intestinal tissue. If you've ever dealt with digestive issues after intense training or during stressful periods, low glutamine availability may be a contributing factor.
Glutamine is also critical for immune function. Your immune cells — particularly lymphocytes and macrophages — consume glutamine at rates comparable to glucose. During intense exercise or physical stress, glutamine demand can exceed supply, potentially leaving your immune system compromised. Supplementation helps maintain the reserve your immune system needs to stay sharp.
Research
Clinical Evidence
Key studies supporting Glutamine, from peer-reviewed journals.
1
Glutamine reduces infection risk during critical illness
Effects of glutamine supplementation on critically ill patients: focus on efficacy and safety — 2020
2
Glutamine supports immune function and weight loss during heavy training
The effect of glutamine supplementation on athletic performance, body composition, and immune function: a systematic review and meta-analysis — 2018
Study titles are simplified for readability. Provided for informational purposes — not medical advice.
Transparency
What's Inside
Third-Party Tested
Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.
Doctor Formulated
Designed by healthcare professionals using evidence-based research and clinical expertise.
cGMP Certified
Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.
As with any natural health product, consult your healthcare practitioner. Store in a cool, dry place. Keep out of reach of children. Discontinue use immediately if you experience an adverse event.
What people say
changed my whole routine tbh
used to take like 5 different supplements every morning and always forgot at least two of them. now i take one stack pack and that's it. so much simpler. and the results are actually better. wild.
Hazel B.
The value proposition is actually excellent
I calculated what I was spending on separate supplements, gym supplements, and energy drinks before Stack.
Tim A.
Simple, smart, and it actually works
The packaging is some of the nicest I've seen in wellness. But beyond aesthetics, the product delivers. My energy throughout the day is more stable and I'm recovering faster from workouts. I was genuinely skeptical.
Ashley N.
The inflammation reduction has been significant
I suffer from low-grade chronic inflammation and it affects everything - energy, mood, joint comfort. Stack's personalized formula has noticeably reduced these symptoms over three months. The targeted approach is clearly more effective than generic options.
Eric T.
My husband noticed before I did
About six weeks in my husband said I seemed more like myself - more energy in the evenings, less irritable, sleeping better. I hadn't even consciously registered how much had changed until he said it.
Amara S.
Personalized for you
Not sure if Glutamine is right for you?
Take our 2-minute Health Assessment and let our AI build your personalized stack — every supplement chosen for your specific goals.
Take the Health AssessmentProduct images are for illustrative purposes and may not represent actual packaging.
