10 Best Probiotics For Dogs 2025 in the United States

The Purina Pro Plan Veterinary Supplements FortiFlora Dog Probiotic Supplement is a popular choice among veterinarians for managing digestive issues in dogs. With a probiotic strain of Enterococcus Faecium, it has a CFU count of 8 CFU/g, which supports intestinal health and balance. This product is suitable for all life stages and breeds, making it a versatile option for dog owners.

The supplement is in powder form, flavored with liver, which is often well-received by dogs, making it easy to administer. It also includes additional ingredients like vitamins C and E, zinc, and beta-carotene, which contribute to health and immune support.

However, the lack of multiple probiotic strains may limit its effectiveness for some dogs needing a broader spectrum of gut flora support. Additionally, the packaging is convenient but might result in more waste compared to bulk options. It's a solid choice for dog owners looking for a probiotic supplement, especially those dealing with digestive health issues.

PetLab Co. Probiotics for Dogs offers a comprehensive approach to canine digestive health, with a focus on gut health, occasional diarrhea, digestive health, and seasonal allergies. The product features an advanced salmon flavor and includes eight strains of beneficial bacteria, which is a good level of strain diversity to support the immune system and manage seasonal allergies.

The addition of prebiotics like Inulin and Pumpkin further enhances digestive health and helps counter occasional diarrhea and constipation, making it a well-rounded formulation. The soft chew form is convenient and likely to be more palatable for dogs compared to pills or powders. It is beneficial that the product is manufactured in the USA and NASC certified, indicating a commitment to quality and safety.

PetLab Co. claims that 84% of subscribers have seen benefits within 90 days, which suggests positive long-term results for regular use. This product is suitable for dogs of all ages and breeds, making it versatile. Its strain diversity and additional beneficial ingredients make it a strong contender in the probiotics market for dogs.

Zesty Paws Dog Allergy Relief chews are designed to help dogs suffering from itchy skin and allergies, combining probiotics with other natural ingredients for a multi-angle approach. The product includes five different probiotic strains, such as Lactobacillus acidophilus, which helps maintain a healthy gut flora and supports digestion. With 250 million CFUs per serving, it offers a moderate amount of beneficial bacteria, which should be enough for daily use in most dogs.

Besides probiotics, it contains Colostrum and Astragalus Root, known for their immune-boosting and anti-inflammatory effects, which can provide relief from itching and support normal histamine levels. The addition of Omega-3 fatty acids from EPA and DHA further supports skin health and reduces irritation. The chews come in a tasty lamb flavor and are easy to give. However, the CFU count is on the lower side compared to some other probiotic products, so it might not be ideal for dogs needing very high doses.

This product is well suited for dog owners looking for a combined allergy and digestive support supplement in convenient chew form, especially for mild to moderate skin itchiness and immune support.