10 Best Probiotics for Dogs

By PetMD Vet Advisory Panel on Oct. 13, 2023
dog with one weird ear

All products in this article have been reviewed by our trusted vets and experts. PetMD is owned by Chewy.

Probiotics are beneficial microorganisms that live in your dog’s gut and contribute to a healthy gastrointestinal system. Just like humans, dogs have a variety of beneficial microorganisms that live in their digestive tract.

About 95% of these microorganisms are bacteria, with the rest including a mix of protozoa, fungi, and even viruses. Probiotics supplements provide microorganisms that helps support gut health, including Lactobacillus species, Bifidobacterium species, and Enterococcus.


Probiotics for Dogs: What to Look For

When you’re shopping for a probiotic for your dog, consider the type and number of microorganisms in the product, cost, palatability (how tasty it is), how it’s administered, and the function you’re trying to support. The quantity of microorganisms in a product is generally measured in billions of CFUs, or colony forming units. The greater the CFUs, the more of a particular organism the product has. 

The list of canine probiotics below has been reviewed by PetMD veterinarians. As always, if you have questions about your dog’s digestive health, you can contact your veterinarian or one of our veterinary professionals at Chewy’s Connect with a Vet.

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