Purina Pro Plan Veterinary Supplements
FortiFlora Canine Probiotic
7.1/ 10
Leads on PetScored rating, Evidence Quality, Active Dose
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Purina FortiFlora vs Nutramax Proviable-DC
Side-by-side pages should help you weigh tradeoffs, not crown a vague winner.
Two vet-channel dog probiotics, head to head: single strain vs multi-strain blendPartial-source beta data
VS
Purina Pro Plan Veterinary Supplements edges Nutramax by 1.9 on composite.
+1.9 composite
Nutramax
Proviable-DC Probiotic Capsules
5.2/ 10
Leads on Safety & Manufacturing, Value
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Our read
The split is disclosure. FortiFlora names its single strain and its CFU count, so it scores well on active dose and ingredient clarity. Proviable discloses only a combined CFU for its multi-strain blend, which our rubric treats as a proprietary blend and caps on active dose, with a clarity penalty on top. Proviable answers with marginally better safety and value, but in our view FortiFlora's transparency is why it lands well ahead on composite.
This verdict is our opinion under the PetScored rubric, not veterinary advice. The exact sub-scores are in the table below; each product’s source confidence and limitations stay on its own scorecard.
Score areaPurina Pro Plan Veterinary Supplements
FortiFlora Canine ProbioticNutramax
Proviable-DC Probiotic Capsules
FortiFlora Canine ProbioticNutramax
Proviable-DC Probiotic Capsules
PetScored ratingPurina Pro Plan Veterinary Supplements7.1Nutramax5.2
Evidence QualityPurina Pro Plan Veterinary Supplements6.0Nutramax5.0
Active DosePurina Pro Plan Veterinary Supplements9.0Nutramax4.0
Ingredient ClarityPurina Pro Plan Veterinary Supplements9.5Nutramax5.5
Safety & ManufacturingPurina Pro Plan Veterinary Supplements6.5Nutramax7.8
ValuePurina Pro Plan Veterinary Supplements4.0Nutramax5.0
Purina Pro Plan Veterinary Supplements
FortiFlora Canine Probiotic
A single studied strain from a manufacturer that owns its plants, but no NASC seal or independent testing and a high cost per day; lands Mixed.
Partially verifiedDogs
Nutramax
Proviable-DC Probiotic Capsules
A seven-strain probiotic from a batch-testing maker at the studied strain set, well priced; the multi-strain evidence is modest and per-strain CFU is hidden behind a proprietary blend, so it lands Limited.
Partially verifiedDogs & catsproprietary-blendvalue-approximate
Comparison scores use the same reconstructed score-event math as the supplement scorecards. Source confidence, unresolved gaps, evidence-library citations, and dose caveats remain attached to each individual scorecard.