Login Sign in

Connect with us.

Join thousands of pet parents and get vet-approved guidance, product reviews, exclusive deals, and more!

9 Best Probiotics for Dogs

Woman giving Beagle probiotics
Skip To

Bacteria and yeast tend to get a bad rap, but sometimes they have amazing health benefits in the form of probiotics for dogs. Probiotics are considered to be the “friendly bacteria” of pets (and people, too).

If you’ve ever consumed yogurt when taking an antibiotic or added a probiotic supplement, you might have wondered whether it’s OK for dogs to take them, too. In most cases, the answer is yes. For example, FullBucket daily probiotics support immune function and digestion in dogs and cats. 

No two probiotics are the same, so we’re breaking down the facts, benefits, and our selections of the best probiotic supplements for dogs.

What Are Dog Probiotics?

Probiotics contain live, beneficial microorganisms, including bacteria and/or yeast, to support and replenish your dog’s body. Many traditional and holistic veterinarians recommend a probiotic for regular and occasional use in their canine patients.

Probiotic supplements are generally used for gut health, to help restore healthy gut flora after taking antibiotics, for stress-induced events, and overall immune system support. Trends in the consumer marketplace often spill over into the pet space, and probiotics are commonly used in millions of pets every day. 

The prefix pro- is Greek for promoting, while biotic means life. There are several formulations depending on your dog’s personal preference and needs. Probiotics are available in capsules, chews, powders, pastes, and even pet foods.

Several pet food brands add probiotics to their diets, which some pet parents prefer for ease of administration. However, the type of probiotics in the food matters as does the way the dog food is made and stored. For these reasons, probiotic supplements for dogs are often the better choice and are what we’ll focus on in this article.

Our Winners

8 Best Probiotics for Dogs

All featured products are chosen at the discretion of the author. However, Great Pet Care may make a small affiliate commission if you click through and make a purchase.

Best Dog Probiotic: Overall Winner

Our pick: Great Pet® Great Poop Digestive Support Dog Supplement

Great Poop

Give your dog everything he needs for gut health in one tasty chicken-flavored chew. Dogs think they are getting a treat, but pet parents can feel good giving this high-fiber probiotic with digestive enzymes. Because some bacteria are actually good for dogs, Great Pet infuses 2 billion colony-forming units (CFUs) and inulin into each serving. Instead of giving your dog a separate fiber supplement followed by a separate probiotic supplement, opt for this all-in-one chewable product.


  • Stimulates production of healthy bacteria for proper gut balance
  • May help alleviate digestive issues from stress or illness
  • Two million CFUs to modulate the immune system 
  • May reduce intestinal canine gas
  • Designed to improve stool consistency 
  • Made in the USA
  • Contains no corn, soy, artificial flavoring, or preservatives 

Things to Consider

  • The product is available in chicken flavor only 
  • Dogs over 101 pounds require five or more chews per day
  • Probiotics are not a complete fix for all canine gut issues. Ongoing gut issues should be addressed by your dog’s veterinarian.

Best Dog Probiotic + Prebiotic Blend

Our pick: Honest Paws Pre+ Probiotics Supplement for Dogs and Cats

Get 15% off your order with code GREATPETCARE

We love Honest Paws Pre+ Probiotics supplements because they make it oh-so-easy to give your pup exactly what they need for healthy digestion and boosted immunity. Healthy Paws blends prebiotics (to promote good gut bacteria) with powerful probiotics (to aid digestion and balance gut flora) in a powdered form that’s more bioavailable than probiotic treats or chews. Plus, each dose contains 5 billion CFUs and comes conveniently packaged in individual sachets or “sticks,” so you can take the supplement on-the-go. And because the supplement is naturally flavored to taste just like oven-roasted chicken, your pup will never want to miss a dose!


  • Contains a robust mix of prebiotic inulin and Honest Paws’ custom blend of probiotics
  • Powdered form offers better bioavailability for improved efficacy
  • 5 billion CFUs per dose
  • Helps support gut health, immunity, and cognition
  • Conveniently packaged as single-dose “sticks” you can take wherever you go
  • Yummy natural roasted chicken flavor
  • Made in the USA with non-GMO, globally sourced, organic ingredients
  • Third-party tested
  • 30-day money back satisfaction guarantee
  • Recommended for both dogs and cats

Things to Consider

  • Honest Paws recommends one stick per day OR the dose recommended by your veterinarian
  • Only 30 sticks per bag, but you can subscribe and save 15% off automatic refills

Best Tasteless Probiotics for Dogs

Our pick: Vetrinex Labs Probiotic Formula for Dogs and Cats

This tasteless, odorless, high-potency probiotic formula safely and effectively eliminates common pet health concerns, including diarrhea, yeast infections, constipation, and even poop eating. Just scoop and sprinkle the powder on your pet’s food and let the blend of seven carefully selected strains of diverse beneficial bacteria get to work. Within just two weeks, look for improved energy and vitality in your dog or cat, plus a shinier coat and healthier skin, thanks to a strengthened digestive tract and immune system.


  • For dogs and cats of all sizes
  • 3 billion CFUs per scoop
  • Fortified with prebiotic inulin to support good bacteria
  • 120 to 240 servings per jar (depending on size)
  • Made in the USA
  • 100% vegetarian
  • Dairy-free, gluten-free, no animal digest
  • Veterinarian recommended
  • Lifetime, money-back satisfaction guarantee

Things to Consider

  • If your pet is sensitive to probiotics, a half-dose is recommended for the first week
  • May not help some pets, depending on the underlying cause of the symptoms

Best Dog Probiotic With Pumpkin

Our pick: Open Farm Probiotic Supplement Chews for Dogs

These new soft chews from Open Farm can help support your dog’s healthy digestion and gut health while promoting healthy immune function. Featuring a unique blend of seven active probiotics, the vet-recommended formula is also packed with yummy, wholesome, and functional natural ingredients like fiber-rich pumpkin and ginger for antioxidants. Plus, we love that you can trace the origin of every single ingredient Open Farm uses back to the source. No mystery ingredients here!


  • 100% traceable ingredients 
  • No artificial flavors, preservatives, wheat, corn, or soy
  • 90 soft chews per container
  • Save 5% when you choose auto-ship
  • Sustainable packaging

Things to Consider

  • Recommended daily amount is 1 soft chew for dogs up to 25 pounds, 2 soft chews for 26 to 75 pounds, and 3 chews for over 75 pounds
  • Start with half of the recommended amount for the first week, then increase to the recommended daily amount
  • Store in a cool, dry place

Best Customized Probiotic for Dogs

Our pick: Dandy Personalized Supplements – Happy Belly

Save 50% Off Your First Month of Dandy with code TRYOURTREATS

Every dog deserves a probiotic designed to meet their individual needs. Dandy takes a personalized approach to your dog’s wellness with their customized monthly treat supplements.  Take a simple quiz on the Dandy website, and you’ll receive instant suggestions for the veterinarian-backed formulas that will benefit your pup the most. Or build your own pack of four daily supplements and be sure to include Dandy’s Happy Belly option. Each Happy Belly supplement contains prebiotics and probiotics to support your pup’s digestive system. A combination of slippery elm and ginger soothe digestion and tame inflammation in the gut. Best of all, Dandy ships direct to you so your dog receives a personalized 30-day supply of supplement treats every month. 


  • Each Dandy treat supplement goes through raw material and post-production testing at an NASC-certified facility. 
  • Each Happy Belly supplement contains 500 million CFU per 1.5 G
  • Each of the Dandy supplements is non-GMO, contains no added sugars, dyes, or fillers, and is all-natural.
  • Made in the USA
  • Veterinarian formulated in conjunction with food scientists and dog lovers for digestibility and bio-availability
  • Take Dandy’s free 2-minute quiz to receive veterinary-backed recommendations  
  • Consider Dandy’s pre-made packs including Wellness Care for probiotic and immune-boosting blends
  • Easy home delivery so your dog never misses a probiotic dose

Things to Consider 

  • Dogs should be at least 6 months old before administering Dandy.
  • Speak with your veterinarian before starting any new supplements

Best Natural Probiotics for Dogs

Our pick: FullBucket Daily Dog Probiotic Supplement

FullBucket is a 100 percent all-natural yeast strain probiotic for dogs. Sprinkle one 5-cc scoop onto an adult dog’s food daily or ¼ scoop for puppies. The complete transparency of 5 billion CFUs of a specific yeast strain coupled with prebiotics, probiotics, and L-glutamine make this a pet parent’s go-to product for their dogs. Given daily, FullBucket is designed to support a dog’s gut microbiome, help digest key nutrients, and boost overall health. The company also has a Daily Cat Probiotic, which offers the same features as the Daily Dog Probiotic but contains a lower amount of CFUs for our feline friends (2.5 billion). 


  • Non-GMO
  • All-natural and vegan
  • Gluten-free
  • 100 percent overdose-free
  • Micro-encapsulated probiotic to protect it from heat, moisture and digestive juices in the mouth and throat
  • Manufactured in the USA
  • 100 percent money-back guarantee
  • Lab tested through third-party laboratories
  • Developed and used by veterinarians

Things to Consider

  • Fussy dogs may balk at the powdered format on their food
  • Daily probiotic is only available as a powder, but FullBucket does sell a highly concentrated probiotic paste that can be used during periods of stress 

Best Probiotic Capsules for Dogs

Our pick: Nutramax Laboratories Proviable DC For Cats and Dogs

From the company behind Cosequin and Dasuquin joint supplements comes Proviable DC capsules for dogs or cats. Each capsule contains seven strains of beneficial bacteria, each with its own unique set of properties. Each strain has a higher potential to colonize versus a single strain probiotic product. Capsules are designed to give as-is or sprinkled over food. 


  • Helps reestablish intestinal health with live microorganisms.
  • Designed for long-term support to help a dog’s digestive system get back on track.
  • Contains seven key probiotic species with billions of live microorganisms per capsule.
  • One capsule per day administration.
  • Helps dogs with digestive upset due to antibiotic use, dietary indiscretion, food sensitivities, stresses due to travel and kenneling, weaning of puppies, metabolic disturbances, immune system-related gastrointestinal conditions.

Things to Consider 

  • Proviable DC is available from many pet supply retailers, but advanced formula Proviable-Forte is available from veterinarians only.
  • Some reviews note diarrhea continued in their dogs while taking Proviable DC, but every experience is different. 

Best Probiotic Powder for Dogs

Our Pick: Purina Pro Plan Veterinary Diets Fortiflora Probiotic

Designed for usage in puppies and adult dogs with diarrhea, FortiFlora is touted as the number one probiotic brand recommended by veterinarians. Each packet contains a liver flavor and dried Enterococcus faecium probiotic to promote normal intestinal microflora. The liver flavor is designed to enhance palatability when sprinkled over the dog’s food. A separate feline probiotic formula is available in powdered packet format.


  • Designed specifically for dogs with diarrhea.
  • May reduce flatulence.
  • Easy-to-administer packets.
  • Also available in chewable tablets. 
  • Created in conjunction with nutritionists, researchers and veterinarians.
  • Designed for all canine life stages. 
  • Simple to use under the direction of your pet’s veterinarian.

Things to Consider

  • Can be given as a preventative measure but check with your pet’s vet first.
  • Some dogs may be averse to the liver flavor.

Best Vet-Recommended Dog Probiotic

Our pick: Visbiome High Potency Probiotics for Pets

Visbiome Vet formula is a high-potency probiotic for dogs that contains eight strains of live bacteria in a high concentration of 112.5 billion CFUs per 0.475 grams. The easy-to-use pull-apart capsules are packaged in an “advanced technology” Activ-Vial to absorb ambient moisture, since moisture can affect live bacteria. Made in the USA and dosed according to the weight of the pet. 


  • Non-GMO and gluten-free.
  • Shipped in an insulated container with ice packs and a temperature monitor sensor. 
  • Visbiome is a member of the NASC (National Animal Supplement Council).
  • Supports normal inflammatory responses in the GI tract.
  • Helps maintain gut flora and normal kidney function.
  • May help reduce occasional loose stools from stress or dietary changes.

Things to Consider

  • Visbiome Vet should be refrigerated but not frozen.
  • Available for purchase from many veterinarians or direct from the company.

Benefits of Probiotics for Dogs

“Probiotics are used to help promote the good bacteria forming in an effort to avoid poor gastrointestinal health,” according to Dr. Adam Christman, chief veterinary officer at MJH Life Sciences. “There’s a thought on probiotics supporting the gut microbiome, a collection of billions of bacteria in the intestinal tract.”

Some of the many benefits include immune modulation and increased adhesion to intestinal walls. This means helpful bacteria in probiotics may benefit dogs in the following ways:

  • Reduce diarrhea and flatulence
  • Improve oral health and help bad breath
  • Improve skin health and reduce allergies
  • Fight ear infections
  • Reduce stress and anxiety
  • Combat weight gain and obesity
  • Help control intestinal worms

Probiotics for Dogs: Buyer’s Guide

Pet parents should be aware that the U.S. Food and Drug Administration does not recognize dietary supplements for animals as a special category. 

Christman shares these tips before administering probiotics to your dog or cat:

  • Do not give a human product to dogs or cats, as their intestinal flora is different from that of a human.
  • Look for a product backed by solid research.
  • Ensure the probiotic contains a source of live, viable naturally occurring microorganisms, antibodies (IgY), and even antioxidants.
  • Some probiotics may contain prebiotics (a healthy fiber), which include D-mannose, beta-glucans, and galactosamine. 

When looking for a specific probiotic for your dog, talk to an expert. Consulting with a canine nutritionist, your dog’s veterinarian, and/or a holistic vet you trust is essential in selecting the right combination. Not every probiotic is appropriate for every dog, so what works for one pet may not have the same results on another.

Most probiotics for animals contain a variety of species and strains, such as Bifidobacterium animalis or Lactobacillus acidophilus. Labeling includes CFUs in the product, which means “colony forming unit,” and indicates how many live bacteria cultures are active and can divide so the helpful colonies form. Always check with your pet’s vet before starting any new supplements or medications. 

Probiotics Vs. Digestive Enzymes: What’s the Difference?

There is a difference between digestive enzymes, such as Pancrezyme powder, and probiotics for pets. Christman explains that Pancrezyme is given to an animal who is unable to digest his or her food due to an insufficiency. Probiotics for dogs and cats, on the other hand, contain live microorganisms that provide health benefits to the host when ingested in adequate amounts.

Probiotics for Dogs: Tips and Advice

“Veterinarians support products that are safe and effective for their patients,” says Christman, adding that probiotics are available at pet retailers, online, and directly from veterinarians. 

Always follow safe storage instructions found on the probiotic label. Because probiotics for dogs are considered to be supplements and not drugs, their efficacy varies. A positive impact should occur within the period of time listed on the product’s label, but tends to take a few days.  

Probiotics aren’t a cure-all, but they can be safe and effective when used under the guidance of your pet’s veterinarian. It’s an exciting time to share life with a dog, so be sure to consider probiotics for digestive and immune health in your canine family members. 

Back to top