10 Best Dog Probiotics 2025 in the United States

Purina Pro Plan Veterinary Supplements FortiFlora Chewable Dog Probiotic Supplement Tablets are a convenient and effective option for managing your dog's digestive health. One of its key strengths is the inclusion of the probiotic strain Enterococcus faecium SF68 at a significant CFU count of 1x10^8, which has been proven to promote intestinal balance and health.

The easy-to-feed chewable tablet form makes administration simple, and it's suitable for dogs of all breeds and life stages, including puppies. Additionally, it contains antioxidants which contribute to a strong immune system, making it a well-rounded supplement for general health maintenance and digestive support, especially in cases of diarrhea.

It’s important to note that the product is recommended to be used under veterinary supervision, which may restrict occasional or casual use without professional guidance. If you are looking for a reliable probiotic supplement for your dog, FortiFlora offers a reputable and vet-recommended option.

PetLab Co. Probiotics for Dogs offers a comprehensive approach to canine gut health with its advanced salmon-flavored soft chews. One of its notable strengths is the inclusion of 8 strains of beneficial bacteria, which supports the immune system and helps with seasonal allergies. These chews also contain inulin and pumpkin, which are excellent for digestive health and can help alleviate occasional diarrhea and constipation in dogs.

Additionally, the product is manufactured in the USA and is NASC certified, ensuring high-quality production standards. Most pet owners have reported seeing positive results within 90 days of consistent use, making it a great long-term investment for your dog's health. The chews are suitable for dogs of all sizes and life stages, providing flexibility for various breeds and ages.

In summary, this product is ideal for dog owners looking to improve their pets' digestive health, manage occasional stomach issues, and boost their immune system, but it might not be the best fit for picky eaters.

Zesty Paws Dog Allergy Relief chews combine probiotics with allergy-fighting ingredients to support dogs dealing with itchy skin and ears. The product includes five probiotic strains (such as Lactobacillus acidophilus) with a total of 250 million CFUs, which is a moderate amount to help maintain gut health and support digestion. Along with probiotics, it features natural components like Colostrum and Astragalus Root that aim to reduce itchiness by supporting normal histamine levels. The addition of Omega-3 fatty acids adds benefits for skin health and immune support.

These soft chews come in a lamb flavor, making it easier to give to dogs of various sizes, and the dosage can be adjusted accordingly. One advantage is the inclusion of EpiCor, a yeast fermentate, known to boost the immune system. However, compared to some specialized dog probiotics, the CFU count is on the lower side, which might be less impactful for severe gut issues. It is recommended to keep the product in a cool, dry place.

This product suits pet owners looking for a combined probiotic and allergy relief supplement in chew form, especially for dogs experiencing mild to moderate skin discomfort.