10 Best Probiotics For Dogs 2025 in the United States

Zesty Paws Probiotics for Dogs is a soft chew supplement designed to support digestion, gut health, and the immune system in dogs of all breeds and ages. It includes a blend of seven probiotic strains, notably the clinically studied DE111 (Bacillus subtilis), which helps maintain healthy gut flora. The formula also contains 4mg of PreforPro, a prebiotic that encourages the growth of beneficial bacteria.

Added digestive enzymes help break down fats, proteins, and carbohydrates, which can aid dogs with tummy troubles. Pumpkin and bromelain are included to support regular bowel movements and overall digestive comfort. The chicken flavor makes it appealing for most dogs to eat, and the product’s soft chew form makes it easy to administer. It has favorable customer reviews reflecting satisfaction.

This probiotic is a strong choice for dog owners looking for a combined probiotic, prebiotic, and enzyme supplement to help with digestion and stool regularity, especially for dogs prone to digestive upsets.

Zesty Paws Vet Strength Probiotics for Dogs offers a thoughtful blend of ingredients aimed at improving your dog's digestion and immune health. It contains the DE111 Bacillus subtilis strain, which is clinically studied and known to support gut function and immunity—this gives confidence that the probiotic effect is backed by science. The addition of digestive enzymes like Amylase, Protease, and Bromelain helps break down food better, which can be great for dogs with sensitive stomachs. The formula also includes fiber and natural ingredients like ginger to support bowel health and digestive motility.

While it provides a focused strain rather than a complex mix, this can be beneficial if you prefer a targeted approach. The chews are designed to be tasty, making it easier to give supplements regularly without a struggle. They come in a convenient 90-count pack suitable for all dog breeds.

This product is a good choice for dog owners looking to support their pet's digestive health with a vet-formulated and palatable option. However, if you want a probiotic with multiple strains or detailed potency information, you might want to compare with other products.

Zesty Paws Powder Probiotics for Dogs is designed as a tasty meal topper to support your dog's digestion and immune system. It features a single probiotic strain, Bacillus subtilis DE111, which is clinically studied for gut health benefits, though it lacks multiple strains that some other probiotics offer. Each serving contains 800 million CFUs, a moderate amount that can contribute positively to digestive balance but might be lower than some high-CFU options. The powder is mixed with inulin fiber and yeast extract, which can help promote healthy digestion and add to immune support. Its pumpkin flavor makes it easier to mix with your pet's food, which is a plus for picky eaters. The product comes in convenient single-serve sachets, making dosing straightforward.

This product is suitable for dogs of all sizes and ages needing digestive or immune support, especially if you prefer a simple, single-strain probiotic. If you want a probiotic with a broader variety of strains or very high CFU counts, you might want to explore other options. Zesty Paws offers a well-reviewed, easy-to-use supplement that supports everyday gut health maintenance.