Best Probiotics for Dogs 2024

As probiotics contribute to the healthy function of the immune system, they could be a useful weapon in the fight against allergies, be they food or environmental.

That’s why this Zesty Paws allergy supplement contains a blend of five probiotic bacteria (with 250 million CFU in each chew).

Alongside this, the ingredient list also contains yeast fermentate, colostrum and astragalus root to reduce the symptoms associated with allergies, including itching and swelling.

There are three flavors to choose from — salmon, lamb or peanut butter, plus tubs of varying sizes to suit demand or budgets. To top it all off, the chews are made in the USA and meet the quality standards laid down by NASC.

You can see why we’ve opted for Zesty Paws as the best probiotic for dogs with allergies.

As we mentioned in the introduction, probiotics are active bacteria that live in the digestive tract and support your dog’s health.

Now, anything that’s alive needs stuff to eat in order to survive and that’s what prebiotics are — think of them as fuel for probiotics to feed on.

These probiotic chews from Finn contain not only six bacterial strains, but also a pair of prebiotic plant fibers that help the microorganisms get to work.

In addition, pumpkin’s on the ingredient list for a source of fiber and natural beef, bacon and cheese flavoring to make it irresistible to your dog.

That’s why we’ve included Finn Digestive Probiotics in our best probiotics for dogs.

There are plenty of reasons why your dog has diarrhea, but one cause might be their gut microbiome being out of kilter, perhaps due to a bacterial infection or ingestion of spoiled food.

A probiotic supplement can help address this gastrointestinal imbalance and Fortiflora is one we would recommend in this situation.

Each serving contains 100 million CFU of SF68 (or enterococcus faecium) and this can be obtained in either a chew or powder form.

As well as the probiotics, there are antioxidants in the mix for added immune support, plus liver flavor and dried yeast to make it tolerable to canine palates.

It’s for all these reasons we’ve named Fortiflora the best probiotic for dogs with diarrhea.

Some dogs will let you give them a tablet with no trouble at all, but others won’t be so  compliant. This is where probiotics in a powder form really come into their own.

Take this option from Naturvet. All parents have to do is add a quarter of a teaspoon to their dog’s food and they’ll receive a blend of probiotics, as well as essential enzymes to help break down food.

The company behind the product has been making health supplements for pets for more than 25 years and they all meet the quality standards set out by the National Animal Supplements Council (NASC).

What’s more, this probiotic is suitable for both cats and dogs, which is helpful if you’re lucky enough to live in a multi-animal household.

Looking after a dog can be an expensive business, let alone caring for multiple canines. That’s why if Wag! sees a product that’s available at a lower price but is safe for use on dogs, we’ll bring it to your attention.

The supplement contains both one billion CFU of bacteria in two chews, plus a prebiotic to give these microorganisms something to feed upon before getting to action. 

Each of these chews has a cheese and liver flavor so they can even be used as a treat, plus the formulation hits the quality benchmarks set by NASC.

However, the reason we’ve included Nutri-Vet’s option on our list is the price. At the time of writing, it was possible to buy 120 chews for as little as $14.53, which is markedly lower than many other similar products. 

The best probiotics for dogs needn’t be out of reach for a lot of parents.