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Purina Pro Plan FortiFlora Probiotic Supplement for Dogs
by Purina Pro Plan Veterinary Supplements · ASIN B001650NNW
A veterinarian-recommended daily probiotic powder that supports digestive and immune health in dogs, widely used to help manage occasional loose stool.
$30.99
Price on Amazon as of 2026-09-15 — prices and availability may change.
8.5/10
Our editorial scoreIndependent of Amazon's rating — see Methodology
Editor's Take
FortiFlora is one of the most widely recommended probiotics in veterinary clinics, and its Amazon/Chewy review base (16,000+ ratings averaging 4.8/5) backs that reputation up. Each sachet delivers a single, consistent dose of live Enterococcus faecium sprinkled over a normal meal, which owners consistently cite as the easiest way to get a probiotic into a dog that won't take a pill.
It's positioned as a maintenance and recovery supplement, not a treatment for underlying disease, so it pairs well with a vet visit rather than replacing one.
Check Price on AmazonOur Scorecard
Digestive Support9/10
Palatability8/10
Vet Trust10/10
Ease of Use9/10
Value7/10
Ingredient Quality8/10
Full Specifications
| Form | Powder sachets |
|---|---|
| Count Per Box | 30 |
| Target Species | Dogs (all ages and breeds) |
| Key Ingredient | Enterococcus faecium (live microorganism strain) |
| Primary Use | Digestive health support, occasional diarrhea management |
| Administration | Sprinkle one sachet daily over food |
| Vet Endorsed | True |
| Also sold as | 180-count box (larger size) |
Pros
- Extremely high vet-recommendation rate
- Easy single-sachet dosing, no pilling required
- Strong, consistent review volume (16,000+ ratings)
Cons
- Priced per-dose higher than generic probiotic powders
- 30-count box runs out in a month for daily use
Best for: Dogs with occasional digestive upset, or owners starting a new food/routine who want gut-health support.
Who should avoid it: Owners looking for the lowest cost-per-dose probiotic — bulk 180-count boxes are cheaper per sachet.
What Reviewers Say
Reviewers on Chewy (same formula) consistently report visibly firmer stool within days and praise how easily dogs accept the powder mixed into food.
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