What Are the Best Probiotics for Dogs and Cats?

If you own a pet, chances are, you want them to be as healthy and happy as possible, and one of the ways to do that is to make sure that they eat right – and that they have a healthy digestive system.

That’s why we came up with this rundown of the best probiotics for dogs and cats. What we did is scour the market for the best probiotics formulations. We tried to be as comprehensive as possible. We understand that pets have different needs and conditions so we tried to make sure that with the range of choices we reviewed, we were able to cover as many as possible.

Probiotics are definitely a good way to boost your pet’s health. They also help with recovery in some cases healing. There are also specific strains of probiotics that suit certain circumstances and conditions, so study your options carefully.

cat probiotics pets at home

30 Best Probiotics for Dogs and Cats

For this list, we’ve chosen 30 different options out in the market. Get the most fitting product based on your pet’s needs. We placed them in alphabetical order.


1. Advanced Probiotic Prebiotic Capsules

Advanced Probiotic Prebiotic Capsules

  • A​dvance Probiotic Dog Health

We start with a product that has been prepared by people who believe that pets deserved to be loved like we do our family members. With this conviction, they produced an excellent product that comes with great features:

  • CFU – 15 billion units per serving
  • Strains – 10 of the best probiotics included
  • It comes with easy-to-open capsules.
  • Powder is tasteless and odorless. It will not modify the delicious taste of your pet’s foods.
  • This product will not only improve the digestive health of your pet. It will help him grow healthy fur.
  • Refrigeration is not required for this product. It is shelf-stable.

2. Animal Essentials Plant Enzyme & Probiotics Supplement for Dogs and Cats

Animal Essentials Plant Enzyme

This probiotic supplement is designed not only with a good variety of bacterial strains. The manufacturer believes enzymes become depleted as pets grow older. So, aside from probiotics, they also included a lot of enzymes in this product. This way, cellulose, proteins, fats and carbohydrates can be easily digested.
Other Animal Essentials Plant Enzymes and Probiotics features include:

  • This product contains 3.5 oz of digestive aid.
  • Clinically proven to heal leaky gut and stop stinky farting.
  • This is a hypoallergenic product.

3. Crafton's Pet Naturals Dog Probiotics

Crafton's Pet Naturals Dog Probiotics

  • Supplements with Digestive Enzymes Prevent Diarrhea and Boost Overall Health

This is best for pets with joint cartilage problems. In fact, it was been developed with elderly dogs in mind. The manufacturer boasts that their supplement is produced in an FDA-approved facility. Great features for this product include:

  • It can fight bacterial infections and promote a less itchy coat.
  • It has the ability to strengthen the immune system of pets. That’s because of prebiotics are combined with probiotics in this supplement.
  • It’s made in the US and the company follows strict AAFCO regulations.
  • It’s chicken-flavored and eliminates the need to force feed liquid gels or pills.

4. Best Probiotics for Dogs, Improves Dog Allergies, Bad Dog Breath, Dog Diarrhea, Constipation

Deley Naturals

  • CHEWABLE CHICKEN DOG TREATS MADE IN USA

Deley Naturals takes the chewy treats approach. Instead of coming up with a powder formulation, they prepared nutritious chicken-flavored chunks for dogs and cats. Features include:

  • The chunks can be given any time of the day.
  • Good for maintaining intestinal balance.
  • Cures irritable bowels, too much gas, constipation, anal gland issues, bad breath, coat and skin problems and loose stools.
  • It contains 6 digestive enzymes.
  • It is also an immune system booster.
  • No artificial flavor and coloring were used.
  • It is also GMP compliant. 

5. Diarrice for Dogs

Diarrice for Dogs

  • All Natural Probiotic for Dogs with Diarrhea with Digestible Rice Fiber to Soothe an Irritated Canine GI Tract

This is the probiotic natural supplement for dogs and cats that are constantly troubled by diarrhea. The digestible rice fiber in this formulation is designed to soothe the GI tract of our pets. Other benefits include:

  • Guaranteed to treat diarrhea and upset stomach in a short time. This will save you huge vet bills.
  • This product blends well with canned pet food. If you are using dry food, just add water.
  • If your pet will respond well to this formulation, you may not have to spend money for diarrhea medicine again.

6. Doggone Best Products

Doggone Best Products Probiotics

  • Doggone Best Products Probiotics for Cats with Diarrhea


Another immune boosting product, the Doggone version is specifically made for cats. This is a safe and natural alternative to prescription medication without the accompanying harmful side effects. If your cat suffers from constipation, nausea or vomiting, this is worth checking out. It comes with the following features:

  • 1 billion of CFUs of active cultures.
  • Grain and gluten-free
  • It is odorless and tasteless. Your cat will not even know that it has been mixed with his food.
  • The product is manufactured in a GMP-approved facility.

7. GutSense - Certified organic probiotic for dogs

This USDA-approved product is specifically for dogs. It is 100% organic. The product is US made which means that its manufacture is subject to generally stricture regulations. Features include:

  • This product contains organic dandelion. The ingredient is included to ensure significant effects on the liver and the stomach.
  • Another special ingredient is cilantro which is included for the purpose of eliminating heavy metals such as mercury.
  • The product uses a dairy-free manufacturing method from Italy.
  • It is a hypoallergenic formula.

8. Dr. Mercola Complete Probiotics Dietary Supplement for Pets

Dr. Mercola Complete Probiotics

  • These probiotics for dogs and cats can help your pet's gastrointestinal tract by supplementing their diet with probiotics that flood their system with beneficial bacteria

Entering the market with more than 10 probiotic strains isn’t an easy feat, but this is exactly what Dr. Mercola did with their 14-strain formula. What that means for your pet is an opportunity to flood its system with beneficial bacteria. It also offers the following:

  • In every serving of this supplement, your pet is guaranteed of enjoying 58 billion of CFUs. Use it within the expiration date and this is exactly what your pet will get.
  • This is a great tool for detoxification.

9. Advanced Probiotic for Dogs Elite Dog Probiotics Powder by Elite Pet Nutrition

Elite Pet Nutrition

  • Eliminates Diarrhea, Gas, All Natural Non-GMO & Gluten Free - FREE BONUS - Made in the USA

This is another formula made especially for dogs. Elite Pet Nutrition is all-natural, it is gluten-free and it is GMO free. No soy or dairy is used in this product. Additional benefits your dog will get are:

  • Health benefits that include healing of diarrhea, loose stool and upset stomach. Plus, this supplement is able to prevent yeast infection, bad breath, gas and mal-absorption.
  • It is easy to give to your pets because it is guaranteed safe. Made in the US, this product has been tested by authorities to ensure effectiveness and safety.

10. NaturVet Digestive Enzymes Plus Probiotic for Dogs

 NaturVet Digestive Enzymes Plus Probiotic for Dogs

  • Great for food transitioning, sensitive stomachs and flatulence.

NAturVet is made with ingredients that ensure fast break down of foods for maximum utilization of nutrients. It contains alpha-amylase for breaking down of starch, protease for protein decomposition, cellulase for breaking down of cellulose and lipase for fast triglyceride absorption. NaturVet is also boasts of the following:

  • It is good for pets with flatulence and sensitive stomachs.
  • It is wheat free.
  • This is good for dogs older than 6 weeks.
  • It is formulated and made in the US.

11. InMotion Healthy Dog Treats

Healthy Dog Treats Probiotic Jerky

  • Chewable Treat for Dogs Best for Pets Wellness, Gas or Diarrhea

This is another healthy snack treat you can give your dog – in case you don’t like the meal-only supply of powder versions. Main ingredients are sweet potato and chicken. Features include:

  • This is also made for pets that have recurrent diarrhea and gas problems.
  • This is an all-natural supplement that can be given any time.
  • The company uses non-GMO ingredients.
  • List ElementEach of the 5 strains included in this product contains 5 billion CFUs.
  • List ElementIf unsatisfied, you can ask for a full refund from the company.

12. iDash Pets Advanced Probiotics

Advanced Probiotics for Dogs and Cats

  • Best Natural Powder Pet Probiotic Supplement- Relieves Dog Bad Breath, Constipation, Skin Allergies, Diarrhea- Aids Digestive Health

The iDash Pets Advanced Probiotics formula can help provide relief from diarrhea, allergy, and constipation. It can also mitigate bad breath. Other good things about this product include:

  • It contains prebiotic inulin to boost the immune system of your pet.
  • Every jar of this supplement contains 25 billion CFUs.
  • It has a powerful ingredient that is both anti-inflammatory and anti-oxidative. The name is Hawaiian Kona Berry.
  • The powder is tasteless and odorless.

13. GNC Pets Ultra Mega Probiotic Formula Chewable Tablet Beef Flavor 180 Tablets

GNC Pets Ultra Mega

  • 2 billion probiotics to support digestive health.

A probiotic product that comes in chewable tablets, the GNC Pets Ultra Mega offers 2 billion probiotics for digestive health support. It also comes with additional prebiotics that are there to support the growth of good bacteria. High-grade features include:

  • The company uses natural beef in the manufacture of this product.
  • It comes in a tablet form. It means you can give it to your dog during plays and training.
  • The company provided details regarding directions for use of this product.
  • The company furnished a detailed list of ingredients they used in this product.

14. Finest For Pets TummyWorks

Finest For Pets TummyWorks

  • Best Powder To Relieve Diarrhea, Yeast Infections, Itching, Skin Allergies & Bad Breath. Boosts Immunity. Digestive Enzymes For Improved Digestion. Made in USA


The company claims that the vision they have for this product is to help pet owners ensure that the tummy of their pet is good-looking and working as it should. With this product, they hope that aside from curing constipation and bloating, skin problems will also be prevented. Other advantages from this product include:

  • This is a US made product, complete with all certifications required by the US government.
  • Good for pet owners looking into restoring gut health after use of antibiotic medications.
  • It comes with a full-refund guarantee.

15. Nusentia Probiotic Miracle


Sometimes, we need a product that can last a long time before we have to make another purchase. For probiotics, this is one good option for that. For every bottle of this supplement, you will have 360 doses and 360 CFU units before consuming it completely. More things to like include:

  • This product has consistently proven its efficacy in healing diseases in pets for many years.
  • It is one of the most-recommended supplements by vets.
  • It is gluten-free.
  • LiThere’s no dairy in it and there’s no soy used in this product.st Element
  • There are no artificial flavorings used and it is odorless.
  • Clinically-tested.
  • Full-refund guarantee within 60 days.

16. Probiotics for Dogs with Enzymes -Chewables (90ct) -Cats and Dog Tablets

Nusentia for Dogs with Enzymes

  • Complete Digestive Remedy for Pets

One more variant from Nusentia is this 90-tablet chewable treat for dogs and cats. Although it doesn’t carry the 360-CFU advantage found in the version above, it is still a favorite among pets and pet owners. It is because of its delicious taste and its power to heal diseases. Once you use this, you are not going to worry anymore about your pets having loose stools or poor digestion.
Things we liked with this supplement:

  • This is offered with the multiple-bottle promotion from the company.
  • It is a non-GMO and GMP-certified product.
  • It is highly recommended for developing healthy skin and coat. 

17. Nutramax 30 Count Proviable Health Supplement for Cats and Dogs

Nutramax 30-count Proviable

  • Can be used alone for long-term intestinal health support and balance

Some supplements are so irresistible to pets. This is one of them. Once your pet has experienced the taste, it will insist on having it frequently. He will love it. It’s great for pets with pancreatitis or stomach flare-ups.
Features include:

  • This is great as a flavor enhancer of pet meals.
  • It doesn’t have to be refrigerated and it is easy to use.
  • This is not a protein-based supplement, so it is safe for pets on a restricted diet.

18. NutraPet Probiotics for Dogs Chewable

NutraPet Probiotics for Dogs Chewable

  • Best for Smelly Gas and Diarrhea Relief Plus Added Prebiotic and Vitamins Only by NutraPet, Controls Stomach Upset

This one is good if you’re on a tight budget but still want to buy probiotic supplements. It comes with a packaging that ensures customers will have 4-months of supply per purchase. More beneficial features include:

  • It comes with a 60-tablet packaging. It’s like you are buying wholesale, so you will have significant savings from it.
  • This is also guaranteed to be liked by your pet. The reason is its real chicken liver flavor, and you know pets really love the taste of animal liver.

19. NWC Naturals Total-Biotics Powder

NWC Naturals Total-Biotics Powder

  • Veterinarians across the U.S, and Top Show Dogs Recommend and use Total-Biotics

This is one of the probiotics that have survived stiff competition over the years. In fact, it has remained in the top sellers list for over 6 years. When it comes to number of strains, it is also one of the best to consider. It comes with 14 strains. More features include:

  • It is approved by most vets. It shows that it a trustworthy product.
  • It uses MGG chelate, the only patented stabilized glutamine in the world.
  • It can help repair a damaged intestinal tract.

20. Particular Paws Probiotics for Dogs and Cats Powder

 Particular Paws Probiotics for Dogs and Cats Powder

  • Probiotics help alleviate a variety of intestinal issues including diarrhea, irritable bowels, nausea and similar.

This is an all-natural formulation. The good thing about this product is that the manufacturer took the time to give all important details in its description. So, with this product, it is clear what your pet will be getting. Features include:

  • 1,250,000 of CFUs of 4 different strains. The one with the highest.
  • For this supplement, only ½ teaspoon per day is needed.
  • The manufacturer also included power enzymes.
  • All ParticularPaws products are made in the US.

21. Paw Choice

Probiotics for Dogs with Prebiotics

  • Daily Chews for Digestion, Regularity, Diarrhea Relief, Plus Supports Immune System and Health - Natural Supplement & Treat Made in USA,


One of the safest products we are recommending to you is Paw Choice probiotics. One great thing about this formulation is that all of its ingredients have been tested and given a certificate of analysis. Plus the company’s facility is regularly audited by the government. You might want to check if your product has been inspected by the National Animal Supplement Council.
Additional features include:

  • It comes at an easy-to-feed size.
  • It provides extra support in stressful activities like traveling and training.
  • Buyers are protected by a 30-day money-back guarantee.

22. Pet Ag Bene-Bac

Pet Ag Bene-Bac

  • Crowds out harmful intestinal organisms to help boost your pet's immune system.

Containing 7 beneficial live-culture bacteria, this supplement is designed to be a great solution to intestinal imbalance. This formulation has been proven by many to have the ability of boosting pets’ immune system. Features include:

  • A one-year date-code guarantee.
  • It comes with a Dial-a-Dose syringe.
  • This product comes with a free travel-size gel.
  • It is perfect with pets with bad breath or halitosis.
  • The product comes with a packaging that is easy to open.

23. Pet Ultimates

Pet Ultimates Probiotics for Dogs

  • EASILY-DISPENSED POWDER ELIMINATES CHOKING RISK

When it comes to CFU content, the Pet Ultimates is one good product to consider. Compared to the small contents of other brands, this supplement contains 2,000,000 CFUs per scoop. The manufacturer has been quoted as saying that they can sleep at night knowing that their product is highly safe for pets to use. Tough-to-beat features for this supplement include:

  • It uses prebiotic inulin for this product’s base. Others use sugar or animal digest as their base.
  • The powder is easily dispensable eliminating choking risks.
  • The powder is tasteless.

24. Petpost | Probiotics for Dogs

Petpost | Probiotics for Dogs

  • Powder Supplement for Gas, Diarrhea, Vomiting, & Stomach Relief

For a quick solution to stomach problems, this is the recommended formulation. The manufacturer says that customers have been reporting of relief for their dogs in a few days. This formula also includes enzymes that will ensure fast absorption of nutrients.
Here are more features:

  • This product uses Alpha-lipase protease, lipase and cellulase.
  • It contains 100 million CFUs of bacillus-type coagulants.
  • For this product, you will have 237 servings, making it a good way to spend less time for buying supplements.
  • The product is backed by a 100% money-back guarantee.

25. Premium All Natural Probiotic & Prebiotic Soft Chewable for Dogs by Power to Your Pet

Power to Your Pet

  • Up to 4 Billion CFU’s- Aides in Digestion, Reduces Gas, Bloating & Diarrhea - 120 Chews/Bottle

Another immediate-relief product to consider is “Power to Your Pet”. Though it is a little bit, expensive, many users like using it and it receives high ratings from customers. This is a result of this product’s effectiveness in treating allergies, gas, diarrhea and bad breath. Additional features to consider are:

  • The company supports animal welfare. For every purchase of this product, one dollar goes to the Red Collar Rescue organization.
  • This product is proudly made in the US and blended meticulously in a GMP-approved facility.

26. PROBIOTICS FOR DOGS – Digestive Aid Plus Prebiotic 

Premo Prebiotic is one name to consider if your priority is CFU or being vet recommended. This supplement also contains 2 billion of CFUs and is one of most recommended options by vets. The next time you make a visit to your vet, ask him about this supplement. Top-end features include:

  • The description says it is highly-effective for vomiting.
  • The base used for this is also inulin.
  • No-questions-ask full-money refund.
  • It is an easy-to-use product because of its small size.

27. Vet One

Advita Probiotic Nutritional Supplement for Dogs

  • Replenishes good bacteria in the digestive tract

Great for dogs of all sizes, the Vet One is a formulation that mixes probiotics and prebiotics. It contains a sizable amount of CFUs, making it a good alternative for more expensive brands that have high CFUs. Additional features worth considering are:

  • It comes with a box of 30 packets. You can easily check if you missed a day or two of giving your dog his daily supplement.
  • It is a formulation by vet experts who know what dogs really need to maintain a healthy gut. 

28. Vetri-Science Mega Probiotic Dog & Cat Supplement

VetriScience Laboratories

  • A non-dairy probiotic formulation

This one boasts of being a non-dairy formulation. If your pet has lactose intolerance, get this product. The manufacturer also uses only safe ingredients, some of them even are capable of cleaning your pet’s digestive tract of harmful chemicals.
Check these additional features:

  • The product comes in capsules with 5 billion microorganisms.
  • There are 8 different strains.
  • The manufacturer thinks that having a GMO certification is a must. Yearly inspection is conducted for this supplement and the facilities where it is manufactured.

29. Vetrinex Labs

Probiotics for Dogs and Cats with Prebiotic

  • 3 Billion CFU. 7 Strains - Best Supplement for Relief from Diarrhea, Skin & Yeast Infections, Allergies, Gas, Itch, Bad Breath & Stomach


For pet owners who want to see improvements in their dogs and cats within a short, this is one of your probiotic options. Reports have it that it can correct problems like bad breath and gassiness in just a short time. Here are more things to enjoy from this product:

  • It comes with a money-back guarantee. No questions will be asked.
  • This is a 360-billion-CFU formula.
  • The formula lasts long. There are up to 240 servings per bottle.

30. Rocky Probiot

Best Probiotics for Dogs Diarrhea and Gas Relief

  • No more Loose Stools - Triple Formula Powder for Large Pups, with Added Prebiotics and Digestive Enzymes. A Must have for those Poop Eaters.

For fewer trips to the vet, the Rocky Probiotics is a good option. One advantage from it is guaranteed results with the first two weeks of use. This product is designed to work fast especially in the area of digestion and absorption.
Additional advantages for this product:

  • It comes with a scoop for easy feeding.
  • It is also a tasteless and odorless formulation. Your pet will not detect the inclusion to his meals.
  • The company loves donating to charities. Their donations go to the American Society for the Prevention of Cruelty to Animals.

can too much probiotic cause diarrhea

How to Choose a Good Probiotic Supplement for Pets

Sadly, not every probiotic product you will see is safe for your pets. They are not as tightly regulated. Thus, even if the probiotic product you are considering is a bestseller, spend time to investigate on it. Know what’s inside the package.
Check the following:

• Included strains – This is top priority. Note each strain. There should be at least 10 strains in the supplement you are considering. To give you an example, in the name Lactobacillus acidophilus:
Genus – Lactobacillus
Species – acidophilus
Strain – DDS – 1

The more strains your supplement, the likelier it is that it’s better at fighting against bad bacteria in your pet’s stomac. This means that the better it can help him fight against diseases. The strain plantarum, for example, can help in preventing cancer and viral infections.

• CFU content – CFU is short for colony- forming units. In the label, it is indicated how many CFUs there are per gram and per serving of the product. The best products contain billions of CFUs per serving.

• Health benefits - The manufacturer should be able to specify the specific health benefits it has for pets.

• Expiration date – It is important that manufacturers mention expiry dates as live bacteria have a shelf life. If the product fails to provide an expiry date, don’t buy it.

• GMP certification – Many probiotic products have been declared unfit for use or do not contain the strains indicated on their labels. Look for the GMP or Good Manufacturing Products seal. If you can’t find it on the label, give the manufacturer a call and ask them about it.

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