It’s only been a few weeks, and she is already calmer, quieter, less demanding, and less reactive. I really didn’t think a supplement could make such a big difference — but it has. My dog feels like a different dog.
97% of dog parents report:
Calmer behavior within 7–21 days
Support your dog from the inside out. CalmGut™ Postbiotic Chews are made for dogs dealing with:
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Night pacing and trouble sleeping
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Reactive walks and sudden startle reactions
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Panic during storms and fireworks
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Stress itching and gut upset
A daily postbiotic chew that rebuilds the gut-brain axis — where over 95% of your dog’s serotonin is made.
Trusted by 35,000+ dog parents
Get to the cause of anxiety and reactivity — without making your dog sleepy:
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Helps balance the gut-brain connection for lasting calm
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Rebuilds the gut with postbiotics — faster than probiotics
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Non-sedating — your dog stays awake, just more calm
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Soft chews with natural chicken flavor dogs enjoy
Backed by a 90-day money-back guarantee — less than 1% of customers ever claim it.
Loved by thousands of calmer, happier dogs
Same simple dose. Every size, every breed. No weighing, no math — just 2 chews a day.
Small Dogs
Under 25 lbs
2 chews a day
Medium Dogs
25–75 lbs
2 chews a day
Large Dogs
Over 75 lbs
2 chews a day
💡
Give every day for at least 21 days to feel the full gut-brain reset
Only 5 left in stock
High Demand Alert:
Veterinarians recommending CalmGut™ Postbiotic Chews has caused unprecedented demand.
Current batch nearly sold out.
Couldn't load pickup availability
In Stock, ready to ship —
tomorrow
90-day money back guarantee
Less than 1% of customers claim it
WARNING: Low Stock Notice
This product sold out 12 times last year.
We encourage you to take advantage of the
limited sale and buy now.
PS: CalmGut™ Postbiotic Chews is ONLY available here — don’t buy fakes on Amazon/eBay.
PS: CalmGut™ Postbiotic Chews is ONLY available here — don’t buy fakes on Amazon/eBay.
“Sedation only turns the alarm off. CalmGut rebuilds the signal — that’s why the calm really lasts.”
Dr. Karen Patel
Veterinarian · 15 years integrative practice
Recommended Use
Recommended Use
🐕All dog sizes: 2 Chews Daily
Split AM/PM for best results
1 chew in the morning + 1 in the evening.
Consistency is key — gut–brain balance rebuilds over time.
💡 Stress trigger tip: Give 1 extra chew 30–60 min before fireworks, storms, or vet visits.
Ingredients
Ingredients
⚡ Core Postbiotic Complex:
🦠Works from day 1: Postbiotic Metabolite Blend (500 mg)
Butyrate, Acetate & Propionate (SCFAs) repair the gut lining and restore the gut–brain axis. Over 95% of serotonin is produced in the gut.
🌿Works within 30–45 min: L-Theanine (100 mg)
Promotes calm focus and reduces stress responses without sedation. Helps dogs settle during high-anxiety moments.
🌾Builds over days: Chamomile Extract (25 mg)
Natural calming botanical that eases tension and supports deeper, more restorative sleep.
Inactive Ingredients:
- Natural Flavoring (Chicken)
- Tapioca Starch > Binding agent
- Glycerin> Moisture retention
- Natural Preservatives>Shelf stability
Do you offer a guarantee?
Do you offer a guarantee?
Yes. Every purchase is protected by our 90-day money-back guarantee. Even if you’ve finished the entire bottle. If you don’t notice a difference in your skin, simply request a refund. No questions asked and no complicated process.
Shipping Information
Shipping Information
We ship worldwide. Our average delivery time is 3 to 8 business days.
Our Guarantee: Your order is 100% covered by our 90-day money-back guarantee.If you're not satisfied, just let us know. We’ll refund your order in full.
Loved by Thousands.. 🐾
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I really love this product. I have 2 dogs, and I’ve seen a big change in their behavior, better digestion, shinier coats, and firmer poop. My Border Collie was also pretty aggressive, and I’ve seen a good change there too. I would definitely recommend it!
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I noticed less pacing and whining within the first week. My rescue has always struggled during storms — hiding, shaking, and impossible to calm. After only a few days on CalmGut, she started to settle down. Things feel much more relaxed now.
The gut controls the calm
Source: Cryan & Dinan, "Mind-altering micro-organisms:
the impact of the gut microbiota on brain and behaviour,"
Nature Reviews Neuroscience (2012).
THE SCIENCE BEHIND IT
Calm begins in the gut.
Emerging research on the gut–brain axis shows that over 95% of your dog's serotonin is produced in the gut, not the brain. When the microbiome is disrupted, the nervous system stays on permanent high alert — pacing, panting, startling.
Restore the gut, and calm follows naturally. That's what CalmGut™ is built to do.
94%
Noticeable improvement
in calm behavior within 7–21 days
84%
Reduction in pacing,
panting, and startle responses
92%
Better rest
during triggers like storms and fireworks
HOW IT WORKS
4 Ingredients. 3 Timeframes. 1 Lasting Result.
Most calming treats use one weak ingredient. CalmGut™ uses a
dual-action approach that works across three timeframes simultaneously —
giving your dog immediate relief while rebuilding long-term calm from the gut up.
WORKS WITHIN 30–45 MINUTES
L-Theanine — The Immediate Calmer
Calms the immediate stress response and helps your dog settle during
high-anxiety moments.
No sedation, no zombie effect
— your dog stays alert and present, just calmer.
BUILDS OVER DAYS
Postbiotic Blend — The Gut Restorer
Butyrate, Acetate & Propionate repair the gut lining and
restore the gut–brain connection
— where over 95% of serotonin is produced. When the gut heals,
the brain stops sending constant "danger" signals.
COMPOUNDS OVER WEEKS
Sensoril® Ashwagandha & Chamomile — The Calm Builder
Sensoril® Ashwagandha regulates
cortisol dysregulation
— the stress hormone that keeps rescue and anxious dogs stuck in
fight-or-flight. Chamomile builds deeper, more restorative sleep.
Together they create a
new emotional baseline
— less reactive, easier to settle. Calm that lasts, not just for an hour.
35,000+
Dogs helped
94%
See results in 7–21 days
90-day
Money-back guarantee
<1%
Refund rate
A daily routine in 3 simple steps
So simple you won't forget it.
Step 1
Give it daily
Two soft chews, straight from the jar. With food or as a treat.
Every day.
Step 2
Give it time
The first 1–2 weeks it works from the inside out — rebuilding the
gut-brain axis. That's normal.
Step 3
Notice the difference
Most dog parents see calmer behavior, better sleep, and less
reactivity within 7–21 days.
🔥
AUTUMN SALE — LIMITED TIME
Ready to give your dog lasting calm?
✓
94% of dogs
see results within 7–21 days
✓
Non-sedative
— personality stays intact
✓
Independent lab tested, over-delivers on dose
✓
Subscribe & save 20% — cancel anytime
🛡️
90-day money-back guarantee · No questions asked
SEE THE DIFFERENCE
We do calm
differently.
CalmGut™ doesn't mask symptoms or sedate your dog. It works from the
inside out — by restoring the gut-brain axis where stress actually begins.
That's why it works when everything else hasn't.
CalmGut™
POSTBIOTIC CHEWS
GENERIC
CALMING TREATS
Targets root cause
gut-brain axis
Restores gut-brain
communication
communication
Generic
"calming"
"calming"
Non-sedative
personality stays intact
Alert, present,
just calmer
just calmer
Often dulls
awareness
awareness
Results in 7–21 days
94% of dogs respond
Builds progressively
over weeks
over weeks
Weeks to months,
if ever
if ever
Independent lab tested
dose + purity verified
509mg actual vs
500mg label
500mg label
Rarely tested
independently
independently
Works across triggers
storms, leash, separation
Supports the nervous
system baseline
system baseline
Single-use or
single-trigger
single-trigger
90-day guarantee
longest in category
3× longer than
industry standard
industry standard
30 days
or none
or none
✓ 100% satisfaction · 90-day money-back · No questions asked
Authenticity Notice
It has come to our attention that inferior, counterfeit products are being offered on Amazon under the CalmGut trademark.
Please be aware that CalmGut has never permitted third parties to market or sell our products.
To ensure you're getting genuine CalmAxis supplements with pharmaceutical-grade postbiotics, always make your purchases directly from vireliashop.com
Got Questions?
Frequently Asked Questions
How long does it take to see results?
How long does it take to see results?
CalmGut™ works in two phases simultaneously.
Phase 1 — Within 30–45 minutesL-Theanine and Chamomile Extract begin supporting relaxation, helping your dog feel calmer and less reactive almost immediately.
Phase 2 — Within 7–21 daysThe Postbiotic Blend restores gut integrity and rebalances the gut–brain axis — where deeper, lasting change happens. Reduced reactivity, easier settling, calmer baseline behavior.
Is CalmGut™ safe for daily use?
Is CalmGut™ safe for daily use?
Yes. CalmGut™ is non-sedative, non-drowsy, and formulated with gentle, vet-informed ingredients designed for long-term daily use.
Postbiotics work by gradually restoring gut balance — consistency is key. Most dogs see the best results after 3–4 weeks of daily use.
Will this make my dog sleepy or "zombie-like"?
Will this make my dog sleepy or "zombie-like"?
No. CalmGut™ supports natural relaxation without dulling personality, awareness, or energy levels.
Unlike treats that suppress the nervous system, CalmGut™ works from the gut up — restoring your dog's own ability to regulate stress. Present, alert, and happy. Just calmer.
Why postbiotics instead of probiotics or CBD?
Why postbiotics instead of probiotics or CBD?
Probiotics are live bacteria that need to survive digestion to work — most don't make it. CBD masks symptoms but doesn't address the root cause.
Postbiotics are the beneficial compounds bacteria produce — stable, bioavailable, and immediately usable. They directly support gut lining integrity and restore the gut–brain signaling that controls mood and stress responses.
What makes CalmGut™ different from other calming treats?
What makes CalmGut™ different from other calming treats?
Most calming treats mask symptoms for a few hours. CalmGut™ works from the inside out by supporting the gut–brain axis — the root cause of most anxiety and reactivity in dogs.
Our postbiotic complex combined with L-Theanine creates calm that builds naturally over time instead of fading after a single dose.
My dog is very anxious or reactive. Will this still work?
My dog is very anxious or reactive. Will this still work?
Yes. CalmGut™ is formulated specifically for dogs with deep stress patterns, trauma histories, and hypervigilance.
Research shows 79% of reactive dogs have measurable gut dysbiosis — keeping their nervous system stuck in survival mode. Many owners report improved settling and reduced pacing within the first few weeks. Backed by a 90-day guarantee.
Can I use CalmGut™ alongside food, supplements, or training?
Can I use CalmGut™ alongside food, supplements, or training?
Yes. CalmGut™ works well alongside normal diets and most supplements. It pairs especially well with behavioral training — calmer dogs learn faster and respond better.
If your dog is on medication, consult your vet before starting.
How do I know the right amount to give my dog?
How do I know the right amount to give my dog?
All sizes: 2 chews per day — 1 morning, 1 evening. Splitting the dose maintains consistent gut–brain support throughout the day.
For high-stress events (fireworks, storms, vet visits), give one additional chew 30–60 minutes beforehand. The formula is non-sedative so occasional extra chews are safe.