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SCIENCE-BACKED
Advanced Cat Probiotic – Digestive, Kidney & Immune Support
1,215 Reviews
Sale price
€41,95
Regular price
€59,95
60 CAPSULES / 2 MONTH SUPPLY
Science-backed probiotic formula designed to support your cat's health from the inside out—one daily capsule.
- Supports healthy kidney function
- Promotes firm stools & healthy digestion
- Helps maintain skin & coat health
- Ideal for cats with sensitive stomachs
Product Information
Our vet-formulated probiotic delivers 10 targeted strains and 5 billion CFU—plus prebiotics and digestive enzymes—to support your cat's health from the inside out.
- Promotes Healthy Digestion — Supports balanced gut bacteria, comfortable digestion, and regular litter box habits
- Supports Immune Function — A healthy gut strengthens your cat's natural defenses and overall wellness
- Boosts Nutrient Absorption — Digestive enzymes help your cat get more from every meal
- Maintains Energy & Vitality — When the gut thrives, your cat has more energy to play and be themselves
Directions for Use
- Open — Twist one capsule apart
- Sprinkle — Add powder to your cat's food
- Mix — Stir in and serve
One capsule daily. Best mixed with wet food. For dry food, add a small splash of water to help the powder stick.
Ingredients
Probiotics (5 Billion CFU) 10-strain blend: L. reuteri, B. longum, E. faecium, L. casei, B. subtilis, B. animalis, L. paracasei, B. licheniformis, L. brevis, L. fermentum
Prebiotic Inulin (FOS) — 30mg
Digestive Enzymes — 30mg Amylase, Protease, Lipase, Cellulase, Hemicellulase, Papain, Bromelain
Antioxidant Vitamin E — 5IU
Other Ingredients: Brewer's Yeast Powder, Garbanzo Flour, Natural Chicken Flavoring, Powdered Cellulose, Silicon Dioxide, Magnesium Stearate, Microcrystalline Cellulose
Shipping & Guarantee
Shipping Free shipping on orders over $75. Orders are processed within 1-2 business days and delivered within 3-5 business days after dispatch.
90-Day Satisfaction Guarantee Try it risk-free. If you're not completely satisfied within 90 days, contact us for a full refund—no questions asked.
What To Expect
Every cat is different, but healthy gut balance doesn't happen overnight, it builds with daily use for lasting results.
Month 1: Foundation
Good bacteria take hold. Subtle shifts in appetite or energy.
Month 2: Progress
Real changes. Eating better. More energy. Brighter eyes.
Month 3: Vitality
Full transformation. Shiny coat. Healthy weight. Your cat again.
What Our Customers Say
Game changer for my senior boy
My 15-year-old Winston has kidney disease and I've tried every supplement under the sun with no luck. This probiotic actually works. His excessive drinking has decreased so much and he has way more energy now. I'm just so grateful to see him acting more like his old self again!
Sarah M.
Verified Buyer
Picky eater approved!
Mochi is THE most finicky cat ever and refuses anything that smells weird to her. She had zero issues with this sprinkled on her food and her loose stools are finally under control after about 3 weeks. Highly recommend for picky kitties.
John D.
Verified Buyer
Worth every penny
I was super skeptical after spending a fortune on other products that did nothing for Smokey's digestive issues. This is the only thing that's actually helped. No more constant vomiting and his appetite is back to normal. My little guy is so much happier.
Emma L.
Verified Buyer
Finally solved Bella's tummy troubles
This has been a lifesaver for my girl's digestion!! She had diarrhea constantly no matter what food I tried and now she's been completely regular for over a month. Plus she seems to actually like the taste because she eats faster when I add it.
Mom of Bella
Verified Buyer
Why PetLonga Works When Others Don't
Features
Research-Backed Strains
High CFU count
Clean Ingredients
Cat-approved flavor
Feline-Focused
PetLonga
Others
Unproven strains
Weak dosing
Cheap fillers
Cats refuse it
Generic formulas
Got Questions? Here's What Cat Owners Ask Most
What benefits can I expect to see in my cat?
Most cat owners notice improvements within the first 1-3 months of daily use. Common benefits include:
Improved appetite — Cats often start eating more consistently, even those who've become picky or lost interest in food.
More energy — Less lethargy, more willingness to play, and a return to normal daily activity.
Normalized drinking habits — Less excessive thirst and more balanced water intake.
Better digestion — Fewer stomach issues, more regular bowel movements, and less vomiting.
Healthier coat — Shinier, softer fur as nutrient absorption improves.
Improved comfort — A more relaxed, content cat overall.
Results vary depending on your cat's age and current kidney health. Some owners also report improved bloodwork results at vet checkups after consistent use.
Are your cat supplements easy to use?
Yes—it takes less than 30 seconds a day.
Simply open the capsule, sprinkle the powder over your cat's food, and mix it in. That's it.
The powder blends quickly into wet or dry food with no grit or clumps. There's no strong smell or bitter taste, so most cats eat it without even noticing.
No pills to force down. No syringes. No fighting at mealtime.
Just one capsule daily, mixed into their regular food.
Do I have to sign up for a subscription?
No. We don't offer subscriptions at the moment, every order is a one-time purchase. No commitments, no recurring charges.
That said, consistency is key for kidney support. It takes time for probiotics to build up in your cat's system and deliver real results.
That's why we recommend stocking up so you don't run out mid-routine. A 4-6 month supply keeps you on track without gaps, and gives your cat the best chance to see lasting benefits.
What are other cat owners saying?
Cat owners are seeing real results—and sharing them:
"Her bloodwork actually improved." — Linda M. Noticed better energy, healthier coat, and improved kidney values after two months of daily use.
"Stopped the vomiting and lethargy." — James K. His cat's digestion improved within weeks, with more energy and consistent appetite.
"Prevention before it's too late." — Rachel T. Started using it proactively after losing a previous cat to kidney failure. Peace of mind knowing she's supporting her cat's kidneys early.
The most common feedback we hear: improved appetite, more energy, and cats that actually eat it without a fight.
Is this formula science-backed?
Yes. The ingredient are selected based on published research, not trends.
The gut-kidney connection is real. Studies show that harmful compounds build up in the gut and pass into the bloodstream, forcing the kidneys to work harder. Targeted probiotics help break down these toxins before they reach the kidneys.
Our 10-strain probiotic blend (5 Billion CFU) includes strains like Lactobacillus Reuteri, Bifidobacterium Longum, and Lactobacillus Paracei—each studied for their role in gut health, toxin metabolism, and immune function.
Prebiotic FOS feeds beneficial bacteria so they colonize and thrive, not just pass through.
Digestive enzymes support complete nutrient breakdown and absorption, reducing stress on your cat's system.
This isn't a generic blend. It's a targeted formula designed to support kidney health from the inside out.
Do you offer free shipping?
Yes, on orders over $74.95, shipping is completely free.
Most customers qualify by stocking up with 2 jars, which also ensures you don't run out mid-routine.
Orders under $74.95 ship at a flat rate calculated at checkout.
How does the 90-day money-back guarantee work?
Simple. If you're not happy, you get your money back.
Try it for up to 90 days. If you don't see a difference in your cat, or you're not satisfied for any reason, just reach out to our support team.
No hoops to jump through. No awkward questions. We'll refund your purchase.
We offer this because we're confident in the formula. Most customers see real results. But if it's not the right fit for your cat, you shouldn't be stuck paying for it.