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.

Zesty Paws Dog Allergy Relief Chews are designed to support your dog's immune system, digestive health, and help with itchy skin and ear allergies. One of the strong points is the blend of six probiotic strains, including Lactobacillus acidophilus, which helps maintain a balanced gut flora. This diversity in probiotic strains is beneficial for digestive support. The product combines probiotics with other immune-supporting ingredients like Colostrum and Astragalus Root, plus a unique yeast fermentate called EpiCor, known to aid immune function.

The chews come in a soft, salmon-flavored form, which many dogs find tasty and easy to chew. This makes daily dosing simpler and enjoyable for pets. Another advantage is the suggested dosing based on dog weight, allowing for customized supplementation. Dogs with sensitive stomachs or specific allergies might want to review the ingredient list carefully.

These chews serve as a good choice if you're looking for a multi-purpose probiotic supplement that also targets allergy-related symptoms and immune support. Consulting with your vet about specific needs is recommended.

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.