How we score

We score every dog probiotic on the same five-part rubric, lead with the verdict, then name the trade-offs behind it.

What we weigh Weight Why it matters
Strains & ingredients 30% Which probiotic strains are included, whether they are named and researched for canine digestion, and how clean the formula is.
Dose & CFU count 25% The guaranteed CFU count per serving at end of shelf life, checked against the label rather than launch-day claims.
Third-party testing 20% Whether the product carries independent third-party testing for CFU potency, purity, and label accuracy.
Value 15% Cost per effective daily serving at the labeled dose.
Fit for use case 10% How well the form (powder or chew) and formula fit the dog and the digestive use case.

We cover the whole category and let a competitor win where it genuinely earns it — believable losses are what make our wins worth trusting.

This site is for general education and is not veterinary advice. Supplements support normal structure and function; they are not intended to diagnose, treat, cure, or prevent any disease.