Pro Plan Veterinary Diets FortiFlora Dog Probiotic Supplement Powder for Digestive Support

Purina Pro Plan Veterinary Diets FortiFlora is a probiotic powder supplement for dogs formulated for the dietary management of diarrhea, with a guaranteed level of live microorganisms in every packet.

• For puppies and adult dogs with diarrhea — provides digestive support for dogs at both life stages.
• Probiotic strain proven to promote intestinal health and balance — supports beneficial intestinal microflora.
• Proprietary microencapsulation process — helps probiotics remain stable and survive until they reach the intestinal tract.
• Powder that you add to regular food — makes the supplement simple to administer as part of a dog’s normal feeding routine.
• Contains antioxidants — provides immune support for dogs.
• Number 1 vet-recommended probiotic brand in an online Q4 2025 survey — based on US veterinarians who named it among one to three brands they recommend.

Changes in a dog’s digestion can make feeding routines more difficult for both pets and their people. FortiFlora is made for dogs whose diet needs probiotic support as part of the dietary management of diarrhea. Its powder format is designed to be added to the food the dog already eats, while its probiotic strain is selected to promote intestinal health and balance. The product is suitable for puppies and adult dogs, so its intended use covers both younger and mature dogs.

What digestive support is FortiFlora designed to provide?

FortiFlora is formulated for the dietary management of diarrhea in dogs and contains a probiotic strain proven to promote intestinal health and balance. The live microorganisms help promote beneficial intestinal microflora, connecting the supplement’s probiotic content with its digestive-support purpose. FortiFlora also helps reduce gas in dogs, an additional digestive benefit. Antioxidants in the supplement offer immune support; they are part of the formula alongside its probiotic component, rather than a separate feeding step.

• Intended for digestive support as part of a dog’s diet.
• Includes both probiotic microorganisms and antioxidants in the supplement powder.

How do you give FortiFlora to a dog?

Sprinkle the powder onto your dog’s regular food to administer FortiFlora. Each packet contains a guaranteed level of live microorganisms, making the packet the unit of probiotic supplement provided for feeding. A proprietary microencapsulation process helps enhance probiotic stability and survival until the microorganisms reach the intestinal tract. This process is designed to support the probiotics on their route through the digestive system; the powder remains easy to add to a regular meal.

• Powder format for addition to regular dog food.
• Microencapsulation supports probiotic stability and survival through to the intestinal tract.

Which dogs is FortiFlora for, and who develops it?

FortiFlora is appropriate for puppies and adult dogs, with its dietary-management use intended for dogs with diarrhea. It is developed in collaboration with Purina nutritionists, researchers and veterinarians. In an online survey conducted in Q4 2025, it was the Number 1 vet-recommended probiotic brand among US veterinarians who indicated it as one of the one to three brands they recommend. That claim is tied to the survey’s participating veterinarians and recommendation criteria.

• Suitable for dogs at puppy and adult life stages.
• Developed with Purina nutritionists, researchers and veterinarians.

FortiFlora is suited to dog owners seeking a food-mixable probiotic supplement for a puppy or adult dog as part of dietary management for diarrhea, with additional support for gas and immune health. Its powder format, guaranteed live microorganisms per packet and microencapsulation process make the feeding method and probiotic delivery central to its design.