Ingredients
Ingredients
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Active Ingredients
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Inactive Ingredients
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Precision probiotic for mild or moderate digestive symptoms
Due to robust demand, orders for this product will ship within 5-7 business days.
Restores key native microbes and critical gut function
Promotes ideal stool consistency in cats with moderate diarrhea or constipation
Ideal for use in cats with microbiome disturbances, such as from medication use
Provides advanced microbiome care in aging cats
Validated by double-blind, placebo-controlled studies in cats in homes
Per 2 Capsules:
Trehalose; silicon dioxide; vegetarian, modified cellulose capsule.
About the Ingredients
Gut Rebuild for Cats features Peptacetobacter hiranonis (felis), a feline-specific probiotic strain considered a keystone species in the cat gut microbiome. Isolated from a healthy cat and validated through rigorous safety and efficacy trials by Animal Biome’s team of microbiome experts, P. hiranonis (felis) converts primary bile acids into beneficial molecules that support healthy digestion and strengthen gut defenses.
The science-backed probiotic Saccharomyces boulardii, and the proprietary phage blend PreforPro® work together to provide fast-acting symptom relief and support the colonization of P. hiranonis (felis) for restored microbiome balance.
Is this the right product for my cat?
Gut Rebuild is designed to promote more symptom-free days in cats with occasional or intermittent digestive issues. It supports deeper microbiome restoration than Gut Maintain for Cats, but is not a full ecosystem replacement like Gut Restore.
Gut Rebuild is a powerful tool to help the microbiome recover from disturbances, especially antibiotic use, which can significantly reduce P. hiranonis (felis) levels.
For cats with severe and longstanding digestive issues, Gut Rebuild can be used alongside Gut Restore for comprehensive microbiome restoration and symptom relief.
Administer 2 capsules per day
Not for use in cats with severe constipation.
As with all supplements, consult with your veterinarian before use, especially if your pet has a health condition.
Store in a cool, dry place.
The best-by date for this product is generally 4-6 months from purchase date.
My poor tuxedo boy has had issues with constipation ever since starting medication for anxiety. I have been using vet prescribed medications to help with it, but they were never very dependable, and he disliked one of them. When the email for this came through my inbox, I jumped on it and ordered 3 months right away. I am very happy to say that after almost two months on this, and actually, since the first day I started giving it to him, he has been able to have a bowel movement twice a day. There have been a few exceptions where he didn't manage twice a day, but it is such an improvement! I open the capsules and mix it into his breakfast and dinner, and he seems to enjoy the taste. He is a happier boy, for sure!
When my kitten was 3 months old, she contracted cryptosporidium parasite and became extremely ill. For months she had severe diarrhea and dehydration needing constant vet visits and fluids. We had tried every medication and antibiotic available for her. After about 6 months of her being miserable, we discovered animal biome gut restore and gave it to her for several months. It helped a ton but not completely, and pilling her was no fun for anyone. When we got the option to be a part of gut rebuild study I jumped on it, desperate for any help. After the first month I noticed a huge difference in her stool consistency, it was better than it ever looked. I knew she wasn’t on the placebo because of the drastic change I’d seen. I was shocked when they mistakenly told me she wasn’t on the placebo. A week later they apologized for their error and confirmed she did receive the gut rebuild. I knew it because of how much better she’s been since giving it to her. She’s finally the happy little kitty that plays and loves again, I am so grateful!
William was a neonatal bottle baby I received as a foster when he was 3 days old. After he was weened and on solid food, his stools were always loose and very smelly. At 8 months of age, William had been on s. Boulardii FOS powder for his irregular stools. His stool consistency was normal on the s. Boulardii but still very smelly, since being on the Gut Rebuild, the smell has become less severe and he loves to eat the powder by itself. I would definitely recommend this product.
Finally a great product from a trusted business for replenishing the gut after antibiotic use which will destroy the healthy and needed bacteria to keep the gut healthy and working properly.
Bob did two courses of antibiotics over several months for an anal gland rupture. He was in need of Repairing his gut. Before this product, Bob was obsessive with eating grass, he would vomit routinely, and his litter box habits were inconsistent.
While Bob was on the Gut Rebuild, he didn’t throw up once, did not obsess for grass and he was having a BM daily.
Since this was the only change in his routine, I’m convinced that this product helped repair his gut.
My only negative, is that Bob would not eat his homemade raw meal if it had the daily scoop in it so I had to put the daily dose into a food that he couldn’t resist (Wellness pate). I don’t blame the product because Bob can tell whenever I add anything different to his food.
This will be my “go-to” whenever I need to rebuild.
Gut Rebuild for Cats is a synergistic formulation designed to suppress the growth of harmful bacteria, restore critical gut function, and strengthen the gut barrier – creating the foundation for lasting microbiome balance.
My dog had a complication with her healing after her space surgery, where her intestines came out of her body, and she nearly died. As a result of this 2 m of her intestine had to be removed leaving her with short bowel syndrome, a condition that causes chronic diarrhoea and mal absorption of nutrients. In addition to this, she was of course, put on two very strong antibiotics to deal with the possible infections. As a result, she was plagued with chronic diarrhoea and fatigue for three months after her surgery. I tried soil-based probiotics, the common probiotics he would find at the pet store and nothing seem to Stop her diarrhea. If I stuck to her exact diet with zero variation, I could have some stability, but her digestive system was far too sensitive. after her being on gut restore for nearly 50 days, I can’t believe the difference. Honestly guys this has been life-changing. The surgeons saved her life initially, but this product has given her a new lease on life. She now has solid poops every single day and I can vary her diet to a certain extent, including bones and different raw proteins as well as regular raw food, and she can now digest the bones in the food she never has diarrhoea anymore or even soft stools. And most importantly, her energy is back to normal, her coat is shining and she’s back to the happy dog that she was before. I will recommend this product to anyone whether their dog has a mildly sensitive stomach or went through a severe situation like mine did. Thank God for this product!!!
My Scottish terrier (almost 5yo) has had episodes of hemorrhagic gastroenteritis starting at about 1yo. He has had several visits to emergency vets and a few overnight stays, each time costing a couple thousand dollars. I discovered fecal transplant after months of research, found AnimalBiome, gave it a try and no joke- my Scooter was back to normal in less than a week. After all the other medications and prescription foods didn't really do anything to help the condition from coming back. Ultimately I'm pretty sure my boy has some kind of stress colitis, though still no definitive diagnoses or cause from the vet. About 2 months ago he had another episode of lethargy and bloody stool, I immediately ordered another round of the Gut Restore, managed to completely avoid the vet, and his stool returned to normal in about a week! I will ALWAYS use and recommend this product for my dogs and anyone else's struggling with digestive imbalances!!
I can't recommend this product enough. Our sweet 7-month-old kitten, Mabel, had been struggling with everything from explosive diarrhea to extremely soft stools for months. After having her stool tested at the vet, it turned out she had an imbalance of bad gut bacteria. My vet suggested Animal Biome Gut Restore, and I’m so glad they did!
I opted for the 60-day bottle based on a few reviews that mentioned it might take longer than 30 days for full results, and I’m really happy I did. We gave Mabel the supplement for about 40 days, and we saw a significant improvement. Her stools gradually firmed up, and we noticed the changes were more noticeable over time, not immediate, but consistent progress. Patience is key, but the results were worth it.
We also put her on a gastrointestinal diet alongside the supplement, which I think helped. After finishing the treatment, I ordered the at-home fecal test kit from Animal Biome to check her progress, and I was thrilled to see much improvement with no harmful bacteria present.
The pills themselves are easy to administer, about half the size of a regular human capsule, which made it simple to give to Mabel. I coated them in a little wet food to make them slippery, and she swallowed them with no problem. I’m also lucky enough to have experience pilling my cats, so that definitely helped.
If only I had known about this product when my soul cat was alive. He suffered from IBD, and I truly believe this could have helped resolve it from the start. Unfortunately, he passed away from complications, but I’ll always be grateful that this helped Mabel.
If your pet has gut issues, I highly recommend giving this a try!
I used if for 30 days for my 5 mo old golden retriever puppy. He had diarrhea for 3 months & I had to get up every 2 hours in the night to let him out. I tried lots of other products. This did the trick!
We participated in a study for this gut rebuild supplement, and I’m truly grateful for the results. My dog, Rambo, has been recovering from the effects of antibiotics for over a year. It has been a long and frustrating process, so I have been very cautious about anything new. What stood out right away was how well he tolerated this supplement, even while undergoing a fecal microbiota transplant (Animal Biome GRS). That gave me confidence that it supports the gut without causing added stress.
During the trial, I saw steady improvement in his digestion. His stool quality became consistent, which has been one of the hardest things to manage. From a gut health standpoint, that level of stability suggests the microbiome is moving in the right direction. Beyond the physical changes, the biggest impact was seeing him more comfortable. When your dog has struggled for that long, those small wins mean everything.
This supplement feels like it is helping rebuild balance in the gut, not just covering symptoms. I will be purchasing more and continuing it as part of his long-term care plan. I would recommend it to anyone working through chronic gut issues with their dog. Thank you, Animal Biome (and Dr. Rojas!)