Meet our best-selling
Gut Guard
Gut Guard doesn't just mask symptoms—it supports repair from within. The exact ingredients that help repair gut damage, restore balance, and deliver results you can actually see.
Shop Gut Guard →
10 Powerful Ingredients in Every Scoop
Gut Guard doesn't just mask symptoms—it supports repair from within. The exact ingredients that help repair gut damage, restore balance, and deliver results you can actually see.
Shop Gut Guard →Fiber Blend
Gut Support
Digestion
Stool Odor
10 Powerful Ingredients That Actually Help Repair the Gut
You've tried other supplements. Maybe even switched foods multiple times. But your dog still struggles with runny stools, gas, or constant tummy troubles.
Here's what's different: Gut Guard doesn't just mask symptoms—it supports repair from within. We worked with veterinarians and nutritionists to identify the exact ingredients that help repair gut damage, restore balance, and deliver results you can actually see.
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Gut repair support in a single scoop
The Complete 10-Ingredient Formula
Foundation Fibers
2 Ingredients
Cellulose (Insoluble Fibre), Psyllium (Soluble Fibre).
Gut Repair Support
2 Ingredients
L-Glutamine, N-Acetyl D-Glucosamine.
Prebiotic Support
1 Ingredient
Inulin.
Anti-Inflammatory & Detox
1 Ingredient
Yucca Schidigera.
Essential Vitamins & Minerals
4 Ingredients
Calcium, Zinc, Iron, Vitamin Complex.
Pure Ingredients For your pet
Psyllium
This soluble fibre adapts to what your dog needs—adding bulk to loose stools or softening hard ones. It regulates digestion while feeding beneficial gut bacteria. Finally, consistent, healthy stools—every single time.
L-Glutamine
This essential amino acid helps rebuild the intestinal wall and repair the microscopic holes that cause "leaky gut syndrome." A strong gut barrier means proper nutrient absorption, zero toxins, and dramatically less inflammation. Goodbye chronic tummy issues!
Inulin
Most supplements miss this: probiotics need food too. This prebiotic fibre feeds your dog's good bacteria, helping them multiply and thrive. The result? Stronger immunity, better digestion, and natural protection from harmful pathogens.
Yucca Schidigera
This plant extract contains powerful anti-inflammatory compounds that calm irritated digestive tissue and promote healing throughout the entire gut. Less irritation, more comfort, happier belly.
Cellulose
This insoluble fibre keeps things moving smoothly by adding volume to the stool. It prevents constipation and promotes regular bowel movements for a healthy digestive system. Stop poor absorption, food sensitivities, and chronic inflammation before it starts.
Ready to give them the best?
Join thousands of dogs already thriving on our vet-backed formula.
Shop Gut Guard →Veterinary-backed gut repair for lasting digestive health.
In over 20 years of veterinary practice, I kept seeing the same pattern: most health problems trace back to the gut. Gut Guard was created to heal the digestive system at its source, not just treat the symptoms. When you fix the gut, everything else follows.
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Developed by expert pet nutritionists
Created with deep nutritional expertise and clinical insight.
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European-sourced premium ingredients
Premium ingredients sourced to the highest European standards.
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Formulated and manufactured in Europe
Produced under strict European quality and safety regulations.
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Veterinarian-endorsed and recommended
Backed by real veterinary professionals who trust the formula.
Frequently asked questions
For more information and guidance,
head over to our help center.
Subscriptions are set up with autoship frequencies, typically 30 days, where your products are sent out at regular intervals to make sure you never run out. We send out email reminders 3 days in advance of your next autoship, so you can make any changes. Subscriptions are the best way to experience Petstile and all of Dr. Zupanc's expertly formulated products! As a subscription customer, all products are available at an extra 20% discount, you receive free shipping, package insurance and much more!
Your subscription charge date will depend upon the date on which you purchased your subscription as well as the autoship frequency. For example, a monthly subscription will be renewed every 30 days. We do our best to take subscription payment on the same day each month.
Our accounts portal for subscribers will allow you to easily adjust shipping schedules and edit/cancel any of your subscriptions.
1. Log into your account
Log in or sign up for an account if you don't have one.
Please note: you don't automatically create an account by subscribing to a product. If it's the first time you are seeing the sign-up/login page then you probably haven't created your account yet, register for an account with the email you used for your purchase.
2. Edit your subscription
Once you're logged in to the My Account page, you will find your currently active subscriptions. Click Edit Subscription on the one you would like to manage.
Remove Add-Ons/Change Frequency
You can remove your add-ons at the top of your subscription settings, as well as change the frequency of your deliveries.
Pause Subscription
To pause your subscription, click on the button next to 'Pause subscription for a month', this option will automatically reset after a month.
Cancel Subscription
To cancel your subscription, go to the bottom of your subscription settings and choose 'Cancel Your Deliveries' under 'Stop your regular deliveries'.
However, when you cancel your subscription, you'll lose access to discounted products, free gifts, early access to new products, and, most importantly, your pet will stop their supplement intake! We do however understand that it is important to be able to cancel or amend your subscription with ease.
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