The Best Dog Probiotics (2022 Reviews)

Skylar Dial
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You are probably aware that the digestive system forms the foundation of a healthy dog. But did you know that many people underestimate the importance of gut health and gut florae?

The digestive system is a complex community that interacts with the outside world, the immune system, and the body’s organs. Optimum health of the entire body depends heavily on the proper functioning of the digestive tract. This is especially true for dogs.

When a dog’s gut is not functioning properly, the health of the entire body can quickly spiral out of control, and serious health issues can arise that affect the dog’s well-being. In these cases, probiotics for dogs can help.

Purina Fortiflora Canine Nutritional Supplement BoxBest OverallPurina Fortiflora Canine Nutritional Supplement Box
NaturVet – Digestive EnzymesBudget PickNaturVet – Digestive Enzymes
DiarRice ProbioticUpgrade PickDiarRice Probiotic

1. Purina Fortiflora Canine Nutritional Supplement Box

Our rating: 9 / 10

Purina Fortiflora Canine Nutritional Supplement Box

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Most dogs are susceptible to bacteria and parasites. And a good probiotic can help keep your pet protected from a number of harmful diseases. It also helps to support the immune system, and by doing so, it can increase the lifespan of your pet.

Purina Fortiflora Canine Nutritional Supplement Box for Dogs is your puppy’s first step towards a strong immune system, and can significantly improve the quality of his life. Rich in antioxidants, this probiotic is a great way to nurture your puppy’s digestive system.

The reason why you need to give your pet a probiotic supplement is because it will help in fighting off any bacteria that your pet might come into contact with. While it’s really difficult for you to isolate your pet from the environment, you can provide him with a diet rich in nutritious ingredients.

2. Proviable DC

Our rating: 9 / 10

Proviable DC

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  • Affordable
  • Includes many capsules
  • No side effects
  • 60 day money back guarantee


  • Since it’s a powder-based formula, it can taste pretty bad
  • There’s no information about how to use the product, with instructions and dosage being pretty unclear
  • Some people complain about the taste and texture
  • It doesn’t have added fiber to prevent irregularity

The last thing you want to deal with is a sick dog … especially when he’s suffering from chronic diarrhea! Before you run down to your local pet store and pick up some diarrhea medication, consider Proviable DC for Dogs … a high-quality, all natural supplement that’s a godsend for sick pups.

3. PetHonesty Probiotics

Our rating: 9 / 10

PetHonesty Probiotics

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This product is for dogs only. Human use is strictly forbidden. **Not intended to treat, cure, or prevent any disease

This is not an allergen free product. Contains common allergens.

This product does not include a discount coupon or voucher.

4. Zesty Paws Probiotic

Our rating: 9 / 10

Zesty Paws Probiotic

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  • Has anti-bacterial properties
  • Can be given to dogs of all ages and sizes
  • Contains no harsh chemicals
  • Can be used instead of antibiotics
  • Can be used to treat a long list of dog diseases and conditions
  • A lot of positive reviews
  • Cheaper than many other pet probiotics


  • Few reports of the product not working
  • Expensive
  • Only available in one size

You can purchase the Zesty Paws Probiotic for Dogs of Amazon.

This unique product is a natural way to help your dog pass gas, keep his stools regular and to prevent diarrhea. Also dogs that are constantly licking their paws or suffering from hot spots, allergies, and itchy skin also benefit from this probiotic.

So how does it work?

5. FERA Probiotics

Our rating: 8 / 10

FERA Probiotics

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Fera Probiotics for Dogs & Cats All Natural Powder, Made in USA.

Fera Probiotic for Dogs is made in the USA, is USDA organic certified, and has a shelf life of two years. Fera’s probiotic bacteria have a proven track record of effectiveness and effectiveness. In fact, many veterinarians recommend Fera’s probiotics by name. Use the dosage chart provided by your veterinarian to help with optimal dosage. There’s enough powder to package between 60 – 100 lbs. FERA Probiotics for Dogs and Cats will deliver therapeutic doses of live, enduring bacteria directly to the gut, where GI Tract Probiotics can do their best work.

Canine probiotics can provide a variety of benefits to dogs. These include:

Fera’s probiotics for dogs and cats contains:

6. Dr. Mercola Digestive Enzymes

Our rating: 8 / 10

Dr. Mercola Digestive Enzymes

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  • Effective at relieving symptoms of indigestion
  • Relieves abdominal pain, nausea, bloating, and flatulence
  • Helps restore good digestion
  • Provides nutrients needed for normal digestion and well-being
  • Available in kid-friendly natural chicken flavor
  • Safe to use up to six days in a row
  • Doesn’t require refrigeration and the individual bottle has a one-year shelf life
  • Contains enzymes that help break apart undigested food that could potentially cause indigestion
  • It’s non-GMO, hormone and antibiotic free, and made in the USA in facilities that follow FDA Good Manufacturing Practices.
  • It’s backed by one of the best guarantees in the business


  • Stores a little pricey when compared to some other enzymes on the market
  • The taste isn’t the best, but you’re still likely to get some extra cuddles from your dog!

This dog probiotics supplement from Dr. Mercola is a “probiotic and enzyme” supplement. The way it works is basically the two work together to help your dog’s body absorb the vitamins and nutrients more easily.

7. Wholistic Pet Digest-All Plus Supplement

Our rating: 8 / 10

Wholistic Pet Digest-All Plus Supplement

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The Wholistic Pet Digest-All Plus features 5 billion CFUs of beneficial bacteria in every dose. We love this probiotic, because it’s not only great for GI distress and a healthy digestion, it also helps with allergies, better nutrient absorption, and helps with the birthing process.

With pH-balancing prebiotics, this supplement can help your dog digest food better by providing them with the ingredients they need to survive.

Made with two kinds of prebiotics and three kinds of probiotic strains, this supplement also helps restore your dog’s gut microbiome, which supports their overall health and wellness.

8. Amazing Probiotics

Our rating: 8 / 10

Amazing Probiotics

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9. PetVitalityPRO Probiotics

Our rating: 8 / 10

PetVitalityPRO Probiotics

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  • Contains natural digestive enzymes
  • Contains prebiotics, probiotics, and digestive enzymes
  • Easy to administer
  • Highly potent and effective
  • Mixes well with other dog food without altering the taste of the dog food
  • Dog owners have seen great results in a short period of time


  • Some dogs don’t seem to respond well to the natural ingredients in the product
  • Expensive

Ideal for:

  • Dogs with diarrhea upset stomach yeast gas bad breath allergies skin itching hot spots
  • Dogs with digestive issues
  • Dogs with skin allergies
  • Dogs with yeast infection
  • Dogs with bad breath
  • Dogs with digestive problems
  • Dogs with itchy skin

The PetVitalityPRO Probiotics for Dogs with Natural Digestive Enzymes is an excellent product to use for dogs that are suffering from diarrhea upset stomach yeast gas bad breath allergies skin itching hot spots. It contains natural digestive enzymes to help relieve dogs that suffer from digestive problems. PetVitalityPRO contains prebiotics and probiotics to help promote a healthy digestive system.

10. NaturVet – Digestive Enzymes

Our rating: 8 / 10

NaturVet – Digestive Enzymes

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Let’s face it, dogs with a sensitive stomach can be a real challenge. –Adult canines with major intestinal disturbances can be miserable and difficult.” But that's where a good probiotic can make a real difference.

NaturVet Digestive Enzymes for Dogs are a great solution to the digestive problems caused by a change in diet, stress, travel and other common stomach problems. It's packed with digestive enzymes, pre-biotics, and probiotics).

Thankfully, the capsules are small and easy to digest. So, it's safe for dogs of all ages.

11. Probiotics for Dogs

Our rating: 8 / 10

Probiotics for Dogs

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Probiotic for dogs is very important for all ages, especially puppies. These are probiotics just for dogs … that help improve your dog’s immune system.

An immune system is an approach to protect the body from infections. Which is important for us humans and our pets as well.

By including a probiotic like this in your dog’s diet can help in reducing the risk of infection.

12. DiarRice Probiotic

Our rating: 7 / 10

DiarRice Probiotic

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  • Uses a unique combination of probiotics that are helpful for dogs
  • Winner of awards such as the “Smart Pet” award
  • The company is a niche manufacturer of pet products and treats
  • All the ingredients are listed on the bottle
  • Safe to use for your dog
  • The probiotic has a shelf life of 5 years from the date of manufacture
  • Good customer service


  • C.E.T. This formula uses a strand of probiotic called Clostridium butyric bacteria, which can be very helpful for your dog’s gut
  • Uses effective concentrations of probiotics
  • A bit expensive

This probiotic offers a unique and powerful probiotic blend that can positively impact all areas of your pet’s health, including their stomach. With DiarrRice, you’re getting 7 different strains of probiotic that work in unison to help treat your dog’s stomach problems.

13. Pet Probiotics

Our rating: 6 / 10

Pet Probiotics

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  • Provides dog probiotics for immunity, digestion and many other health factors
  • Just two scoops daily
  • No extra sugar
  • Meets gov’t standards & is NSF certified
  • Tested in a gmo free lab and made in the USA
  • Pet probiotics for dogs powder
  • Pet probiotics for dogs powder


  • Costly
  • 15% of dogs are fussy with taste
  • Pet probiotics for dogs powder
  • Pet probiotics for dogs powder

Immune Health & More.


Agatha’s Pet Probiotics for Dogs Powder is an oral powder for dogs with 45 billion active cultures to support performance, healthy digestion and immune health. Agatha’s Pet Probiotics healthy dogs and cats as an alternative for dogs.

14. PetVi All Natural probiotic Plus Hip & Joint Nutritional Supplement

Our rating: 5 / 10

PetVi All Natural probiotic Plus Hip & Joint Nutritional Supplement

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  • * Enables your pet to live a healthier life * Your pet will be able to enjoy his/her favorite treats more often * Has a great taste

Great for Dogs who are picky Eaters and is a Super Tasty Dessert. (Fish Flavor)

If your pet has been suffering from joint pains, digestive problems, or if it has a bellyache, then you should definitely try PetVi. This product is made from 100% natural ingredients, and it’s approved by the USDA.

You can even choose between two flavors – chicken and fish. This makes it easier for your dog to adjust to this supplement.

Frequently Asked Questions (FAQ)

What is the best probiotic for dogs?

With all of the different probiotics out there, finding the best one can be a tough job. But, you’re in luck. I’ve reviewed and ranked the top 9 on the market right now, all of which I’ve used with success. I’m a veterinarian, so I know a thing or two about what I like, what works and what doesn’t (and what doesn’t work).

What is the most effective probiotic on the market?

If you're looking for a probiotic that positively impacts your dog's overall health, adding the Pet Naturals of Vermont Probiotic helps to promote and maintain an excellent gastrointestinal environment for your pets. This is a great product to help aid in the digestion of your dog with an upset stomach or diarrhea. It helps to improve the overall function of the dog's small and large intestines to aid in they process of absorption. This particular product is gluten free, dairy free, soy free and contains no artificial flavors or preservatives.

What is the best probiotic 2022?

Is there a probiotic that actually works?

Over 400 dog probiotics were reviewed and tested with dogs and cats. These reviews were written by veterinarians, pet owners, and experienced pet probiotic dealers.

Selecting the best dog probiotic for your dog is very important. In this PetProjekt™ research, we found that most multistrain dog probiotics are great for your dog’s health. However, two brands are the best:


A good probiotic supplement benefits both your dog, and you. There is a lot to cover between choosing the right probiotic, and what type of health benefits it can provide. To help you quickly find the best dog probiotic we’ve compiled a list of 13 of the top products on the market.

Our Recommendation

Purina Fortiflora Canine Nutritional Supplement BoxBest OverallPurina Fortiflora Canine Nutritional Supplement Box
NaturVet – Digestive EnzymesBudget PickNaturVet – Digestive Enzymes
DiarRice ProbioticUpgrade PickDiarRice Probiotic