Purina Pro Plan Veterinary Supplements FortiFlora delivers daily probiotic support to help dogs manage digestive troubles like diarrhea. Thanks to its targeted formula and ease of mixing with food, it’s a vet-recommended pick for maintaining your dog’s gut health and immune defenses. However, keep in mind that it requires consistent daily use and only comes as a powder, so it’s best suited for pet owners committed to regular supplement routines.
Canine Probiotics – Purina Pro Plan Veterinary Supplements FortiFlora is a probiotic powder designed specifically for dogs, both puppies and adults, who are experiencing digestive concerns like diarrhea. The product is formulated to support gut health and overall intestinal balance with a strain of probiotics shown to be effective in dogs. Additionally, it provides antioxidants to help bolster the immune system. This supplement comes in a single-use, powder format with a 30-count box, making it easy to administer as part of a daily feeding routine.
Here is the real-world consideration: the supplement’s method of delivery is its biggest trade-off. It comes only as a powder that must be added to your dog’s food every single day, which may not be as convenient for pet owners looking for a quick solution or those whose dogs are picky eaters. If your schedule or your pet’s tastes make daily powder mixing a hassle, this could quickly become frustrating. Still, for dogs that need reliable digestive support and whose owners are comfortable with daily dosing, it’s a straightforward solution backed by veterinarians.
Best For: Dog owners seeking vet-recommended daily probiotic support for digestive issues
Not Recommended For: Pet parents who prefer non-powder formats or want a less hands-on daily supplement routine
Key Features of Canine Probiotics
- Number one probiotic supplement recommended by veterinarians (Kantar Veterinary Tracker, 2020)
- Probiotic supplement for the dietary management of puppies and adult dogs with diarrhea
- Contains a probiotic for dogs proven to promote intestinal health and balance
- Promotes a strong immune system and contains antioxidants for dogs
- Easy-to-feed dog supplement powder
From the manufacturer about Canine Probiotics

Support Dogs with Diarrhea with the Power of Probiotics
The #1 veterinarian recommended probiotic brand to support digestive health.* Pro Plan Veterinary Supplements FortiFlora contains a probiotic proven to promote normal intestinal microflora, supports dogs with diarrhea, and promotes a strong immune system. *Relevation Veterinary Tracker, 2023

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