AnimalBiome S. boulardii + FOS Powder for Cats and Dogs
Powder, positioned for loose stools, antibiotics.
Powder
Dogs and cats
Saccharomyces boulardii
$0.89 to $4.45 a day by weight
Trials of its named ingredient in the animal
4.4 out of 5 from 157 ratings at Amazon
What is in it
- Saccharomyces boulardii CNCM I-3799 — 6.6 billion CFU per scoop
- GOFOS fructooligosaccharides — 225 mg per scoop
What owners consistently report
- Used during and after antibiotics
- Vet-recommended in several owners' telling
- Owners of cats with severe diarrhea reported it resolving
What the research supports
No trial of this product was found. Saccharomyces boulardii has ingredient-level support: in a double-blinded placebo-controlled study, 20 dogs with chronic enteropathy improved in clinical activity index, stool frequency and consistency over 60 days (PMID 29212912); 53 healthy dogs fed S. boulardii DSM 34246 at 5 x 10^9 CFU per kg of feed for 35 days had lower fecal scores from day 14 (PMID 39852920); 14 healthy cats on the same dose had a fecal score of 3.5 against 4.3 (P=0.0006) and fecal dry matter of 46.3% against 33.2% (P<0.0001) (PMID 39852919); 25 breeding dogs had lower fecal calprotectin and cortisol (PMID 36006304). Those strains differ from the label's CNCM I-3799.
What the label discloses
The label names Saccharomyces boulardii CNCM I-3799 at 6.6 billion CFU per scoop with GOFOS fructooligosaccharides 225 mg; no other ingredients. The 60 g jar gives 100 scoops. Guarantee timing is not stated on the pages read.
Dose by weight, from the label
| ANIMAL AND WEIGHT | LABEL SERVING | COST A DAY |
|---|---|---|
| Dog, under 25 lb | 1.5 scoops a day | $1.34 |
| Dog, 25 to 50 lb | 3 scoops a day | $2.67 |
| Dog, 50 to 75 lb | 4 scoops a day | $3.56 |
| Dog, over 75 lb | 5 scoops a day | $4.45 |
| Cat, under 10 lb | 1 scoop a day | $0.89 |
| Cat, 10 lb and over | 1.5 scoops a day | $1.34 |
Cost is the pack price at the retailer named below divided by the servings in the pack, at the label serving for that weight. Your vet’s instructions come first.
Worth knowing
No label warnings beyond the standard wording. In the Amazon reviews read, the recurring note was the price; one owner of a dog with inflammatory bowel disease saw no effect.
Not sure this is the one for your pet?
The pet quiz asks what they are dealing with, their weight and what the vet has said, and picks one product with the reason it won.
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Others we researched for the same job
- Full Bucket Daily Dog Probiotic — for dogs, $0.51 to $1.03 a day by weight