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NOW FoodsCapsuleDogsLabel verified 2026-10-12

NOW Foods Saccharomyces Boulardii

This entry is a bit different from the rest: NOW Foods Saccharomyces Boulardii is a human supplement, not a product formulated or labeled for dogs, and it's included here strictly as a cross-reference point rather than a recommendation. NOW's own site returned an error on every fetch attempt during this research pass, so what follows comes from third-party retailers echoing NOW's Supplement Facts panel, not a manufacturer-confirmed source. Those echoed figures put it at 5 billion CFU of Saccharomyces boulardii per veggie capsule, with the stated serving size being two capsules, or 10 billion CFU. Whether that count holds through expiration or only at the time of manufacture isn't specified anywhere we found. The capsule also contains organic inulin (FOS) and guar gum, housed in a hypromellose vegetarian capsule shell. Echoed storage directions suggest refrigeration to maintain potency, though again, this wasn't independently confirmed by the manufacturer.

Because this isn't a dog product, there are no dog-specific label claims and no dog dosing information to pass along. The echoed human dosing is 1-2 capsules, 2-3 times daily between meals, which has no bearing on how you'd dose it for a dog. No ASIN was found, so there's no confirmed Amazon listing tied to this as a pet product. Treat this one as background information for comparing CFU counts and ingredients against the dog-specific products on this site, not as something to buy and dose for your dog.

CFU / veg capsule (120-count bottle also sold)5 billionunstated
Strains10 strain-numbered
Prebioticnone listedamounts not stated unless quoted
StorageRefrigerateEchoed directions recommend refrigeration to maintain potency (not independently manufacturer-confirmed)
Price & availability on Amazon. Commission disclosure in the footer.

What's in it, strain by strain

Transcribed from the guaranteed analysis. "Species only" means this label prints no numbered strain, so study results for a named strain don't transfer.

Organism (as printed)GenusStrain-named?Dog evidence
Saccharomyces boulardiiSaccharomycesSpecies only1 study
Total: 5 billion CFU per veg capsule (120-count bottle also sold).Prebiotics: none listedOther ingredients: Hypromellose (vegetarian capsule)

Dosing by dog weight (from the label)

No weight-tiered dosing table on this label.

Cross-reference only (human supplement, not a dog product). Echoed directions: take 1-2 capsules 2-3 times daily between meals as needed.

Days per pack & cost per day

Days per pack—
Cost per day—
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Questions people ask about NOW Foods Saccharomyces Boulardii

Is this product made for dogs?

No. This is a human supplement included here only as a cross-reference for comparing CFU counts and ingredients, not a product labeled or dosed for dogs.

How much CFU does each capsule contain?

Third-party retailers echoing NOW's Supplement Facts panel put it at 5 billion CFU per capsule, with a stated serving of two capsules totaling 10 billion CFU. The manufacturer's own site could not be fetched to confirm this independently.

Does the CFU count hold through the expiration date?

That isn't specified in the information we found. No basis for the CFU count, through expiry or at manufacture, was stated anywhere we could locate.

What's the prebiotic in this product?

Organic inulin, also called FOS, along with guar gum, inside a hypromellose vegetarian capsule.

Can I buy this for my dog on Amazon?

No ASIN was found tied to this as a pet product during this research.