CAT-SPECIFIC STRAIN. CLINICALLY VALIDATED. OPEN OR GIVE WHOLE
AnimalBiome Gut Rebuild for Cats – Probiotic for Diarrhoea & Digestive Health | 60 Capsules | UK Stock
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A precision probiotic for cats with mild to moderate digestive symptoms – AnimalBiome Gut Rebuild restores key native microbes and gut function, helping cats with intermittent diarrhoea or constipation reach more symptom-free days. Available at Boss Pets UK in a 60-capsule bottle.
Built around a cat-specific keystone strain – Peptacetobacter hiranonis subsp. felis, isolated from a healthy cat, works alongside Saccharomyces boulardii and the PreforPro® phage blend to suppress harmful bacteria and rebuild microbiome balance.
Capsules can be opened or given whole – Mix the powder into food if your cat will not take a capsule. Store in a cool, dry place after opening; do not refrigerate or freeze.
A full 30-day course in one bottle – At the recommended 2 capsules daily, 60 capsules covers the 30 days of continuous use AnimalBiome recommend. Validated in double-blind, placebo-controlled studies in cats at home.
Key Features
Key Features
60 capsules — a 30-day supply – At the recommended 2 capsules daily, one bottle covers the full 30-day course.
Cat-specific keystone probiotic – 100 million AFUs of Peptacetobacter hiranonis subsp. felis per 2 capsules, isolated from a healthy cat.
1.8 billion CFUs of Saccharomyces boulardii – A well-studied yeast probiotic for fast-acting digestive relief.
PreforPro® phage blend, 6.5 mg – Targets harmful bacteria so beneficial microbes can establish.
Open or give whole – Unlike Gut Restore, these capsules can be opened and the powder mixed into food.
Clinically validated – Tested in double-blind, placebo-controlled studies in cats at home.
No refrigeration needed – Store in a cool, dry place once opened. Do not refrigerate or freeze.
Benefits
Benefits
Promotes ideal stool consistency – In cats with moderate diarrhoea or constipation.
Restores microbes lost to medication – Particularly useful after antibiotics, which sharply reduce P. felis levels.
Supports ageing cats – Cats of 9 years and older are commonly low in P. felis.
Strengthens the gut barrier – Creating a foundation for lasting microbiome balance.
More symptom-free days – Designed for cats with occasional or intermittent digestive issues.
Straightforward to give – No pilling battle if your cat prefers it mixed into food.
How to Use
How to Use
Daily amount – Give 2 capsules per day.
Sensitive cats – Start with 1 capsule daily and build up slowly to 2.
Whole or opened – Give the capsules whole, or open them and mix the powder into food.
Timing – Both capsules together or at separate times, with or without food.
Give for at least 30 days – Continuous use matters, as foundational microbiome shifts take time.
Not for severe constipation – AnimalBiome advise against use in cats with severe constipation.
Storage – Once opened, store in a cool, dry place. Do not refrigerate or freeze. Best-by is typically 5 to 6 months from purchase.
Consult your vet – Especially if your cat has a health condition.
How It Works
How It Works
The three ingredients do different jobs in sequence. PreforPro® is a blend of bacteriophages — viruses that infect bacteria — which target harmful species and clear space for beneficial ones. Saccharomyces boulardii is a yeast rather than a bacterium, which is why it survives alongside the phages and provides quick symptom relief while the slower work happens. That slower work is Peptacetobacter hiranonis subsp. felis, a keystone species in the feline gut: it converts primary bile acids into compounds that support digestion and strengthen the gut’s defences, and even at low levels it creates conditions where other beneficial bacteria can function. Antibiotics such as metronidazole and tylosin sharply reduce it, which is why cats often struggle digestively long after a course has finished.
Why Choose
Why Choose
A strain made for cats – P. felis was isolated from a healthy cat, not adapted from a human or canine probiotic.
Easier to give than Gut Restore – These capsules can be opened and mixed into food.
Backed by placebo-controlled trials – Uncommon in the pet supplement market.
A step up from everyday probiotics – Deeper microbiome restoration than a maintenance product, without the cost of full FMT.
Available at Boss Pets UK – Genuine AnimalBiome stock with fast UK delivery.
Common Uses
Common Uses
After a course of antibiotics – Metronidazole and tylosin in particular deplete P. felis.
Intermittent loose stools – Cats whose digestion is unsettled rather than consistently severe.
Mild to moderate constipation – Though not for cats with severe constipation.
Senior cats – From around 9 years, when P. felis levels commonly fall.
Alongside Gut Restore – For severe, longstanding cases the two can be used together.
Summary
Summary
AnimalBiome Gut Rebuild for Cats is a precision probiotic for cats with mild to moderate digestive symptoms. Two capsules daily supply Peptacetobacter hiranonis subsp. felis, a cat-specific keystone strain, alongside Saccharomyces boulardii and the PreforPro® phage blend, working together to suppress harmful bacteria, restore gut function and strengthen the gut barrier. Capsules can be given whole or opened and mixed into food, and should be given continuously for at least 30 days — which one 60-capsule bottle covers. Store in a cool, dry place; no refrigeration needed. Available now at Boss Pets UK.
FAQs
FAQs
How is Gut Rebuild different from Gut Restore?
Gut Restore is a full microbiome replacement using FMT material from donor cats, for severe cases. Gut Rebuild is a precision probiotic for mild to moderate symptoms, restoring key strains rather than the whole ecosystem. For severe, longstanding problems the two can be used together.
How many capsules are in a bottle, and how long will it last?
60 capsules. At the recommended 2 per day that is a 30-day supply, matching AnimalBiome’s advice to give it continuously for at least 30 days. A sensitive cat starting on 1 capsule daily will get longer from the first bottle.
Can I open the capsules?
Yes. Unlike Gut Restore, Gut Rebuild capsules can be opened and the powder mixed into food, or given whole.
How much should I give?
2 capsules per day, together or at separate times, with or without food. For sensitive cats, start at 1 capsule daily and build up slowly.
Does it need refrigerating?
No. Store in a cool, dry place once opened, and do not refrigerate or freeze.
Why does it smell yeasty?
A tangy or yeasty smell is normal and expected, and comes from the Saccharomyces boulardii.
Which cats benefit most?
Cats with mild to moderate digestive issues, particularly those low in P. felis — common in senior cats of 9 years or older and in cats that have recently had antibiotics such as metronidazole or tylosin.
Can my cat stay on other medications or supplements?
Generally yes, with one exception: avoid highly concentrated bacterial probiotics such as Lactobacillus, Bifidobacterium or Enterococcus. S. boulardii can be used alongside it. Check with your vet before starting any new supplement.
Are there any cats who should not take it?
AnimalBiome advise against use in cats with severe constipation. In rare cases a cat may react poorly — if symptoms worsen after starting, stop and reintroduce more slowly.
How long until I see a difference?
Give it continuously for at least 30 days. Microbiome changes are gradual rather than immediate.
Where can I buy it in the UK?
AnimalBiome Gut Rebuild for Cats is available from Boss Pets UK with fast delivery.
Shipping & Returns
Shipping & Returns
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Support
Support
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