Probiotics are good gut bacteria that aid digestion, help with the proper growth of your dog, and keep them healthy and in a better mood. The best dog probiotics can also help enhance immune health and keep your pet’s coat shining.
Fortunately, apart from natural sources, many probiotic brands are available that can help improve your pet’s healthy microbes and their quality of life. Suitable for all breeds, you can mix these with your canine’s meals and witness a positive change in their overall development.
We have listed a few most trusted products by dog owners and veterinarians in this article. With their knowledge, expertise, and real-life experiences, we were able to narrow down the best of the dog probiotics.
When Should I Give My Dog Probiotics?

Probiotics are said to work best in the morning when there is the least amount of acid in your pet’s stomach. Higher quantities of acid tend to destroy probiotics, affecting their efficiency. So, it’s suggested that probiotics be given in the morning so that they can work throughout the day. However, giving your dog probiotics according to the recommended dosage and timing, as mentioned on the product’s packaging, is always a good idea.
What Types of Dog Probiotics Are There?

You can find a variety of probiotics in multiple forms. Some dog foods contain probiotics, whereas there are other supplements that are enriched with probiotics. These supplements can be included in meals and given to your pets.
Capsule Supplements
These are supplements in the form of capsules that contain probiotics in addition to other nutrients like vitamins and minerals, which are responsible for the better growth of your pup. You can easily put a capsule in your canine’s meal and let them enjoy good gut health.
Probiotic Powders
As the name suggests, probiotic powders are enriched with microbes derived from multiple sources. Such powders may also contain enzymes such as lipase for better digestion and to improve immunity.
Liquid Probiotics
Several multi-strain formulas are available in liquid form to improve gut microflora. You can spray or pour these liquid probiotics onto your dog’s meals for them to consume.
Dog Meals with Probiotics
Meals with probiotics are great for daily consumption. These meals are nutrient-enriched and contain essential bacteria. Some natural resources for dog meals containing probiotics are yogurt, kefir, etc. However, dog owners must be assured that they do not contain artificial sweeteners.
Supplements in the form of Tablets
These are chewy, flavored tablets loved by pets. They can be given as dog treats or mixed in their food for easy consumption. However, these tablets might not contain live probiotics.
The Best Dog Probiotics to Buy in 2025
Now that you know more about dog probiotics, here is a list of the 12 best ones. They are all top-rated dog probiotic brands that can be trusted for quality. We have taken steps to include only vet-approved, superior-quality dog probiotics in this curation. Take a look!
BEST OVERALL
Artullano Probiotics for Dogs

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Why We Love
Eases several digestive issues
Supports immune health
Contains natural, high-quality ingredients
Tasty duck-flavored soft chews
Easy to serve
Can help with anal gland and yeast-related discomfort
But…
May take time to show visible results
Topping our list of best dog probiotics, Artullano Probiotics for Dogs is an effective formulation with wide-reaching benefits. Designed to ease everything from gas and bloating to loose stools and anal gland discomfort, it’s a gentle yet powerful way to support your dog’s digestive system. These chews go beyond the belly — many pet parents report improvements in skin issues tied to food sensitivities, thanks to the immune-supporting blend inside each bite.
What makes it even more appealing? The soft, duck-flavored chews are a hit with dogs of all sizes and ages — no measuring, no mess, no fuss. Made with natural ingredients and free from artificial flavors or colors, it’s clean, effective care that your pup will look forward to.
Best For Sensitive Skin
PetLabCo Probiotic Chews

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Why We Love
Soft, chewy material
Premium quality
Tasty pork flavor
Encourages healthy yeast
Gives cleaner teeth and a shinier coat
Helps with paw-licking
But…
Slightly bad odor
A premium probiotic product that takes care of your pet’s health is all you need, especially if they have a sensitive stomach. This product is formulated with eight probiotics, honey, inulin, and pumpkin to support the immune system and gut health. Pumpkin is great for a dog’s digestive health and helps with diarrhea.
With this unique combination of prebiotics and probiotics, you can control your canine’s itching, rashes, and seasonal allergies. Regular use of this health supplement also tackles constipation.
Best for Diarrhea
PURINA PRO PLAN FortiFlora

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Why We Love
Great taste
Promotes intestinal health
Enriched with antioxidants
Superior quality ingredients
Safe and effective formula
Easy to mix into the food
But…
Slightly expensive
Purina’s Veterinary Diet range brings you this probiotic supplement powder with live probiotic content. It is a vet-approved supplement that helps improve the gut health of your canine. Apart from gut health, it also improves immune health. The formula is specially created to help with dog diarrhea and stomach issues like gas and bloating. The supplement is easy to feed to your pet in both powder and tablet form.
PURINA PRO PLAN’s FortiFlora is a research-backed supplement that can be used for both puppies and adult dogs. With active ingredients like yeast and Enterococcus faecium, this supplement helps keep a balance of good bacteria in your furry friend’s stomach.
Best for Bowel Support
Zesty Paws Probiotic Chews

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Why We Love
Easy-to-feed form
Helps get rid of itchy skin
Comes in 3 tasty flavors
Research-backed ingredients
Contains no preservatives or synthetic colors
But…
Slightly expensive
If your pet’s tummy is unhappy, investing in the Zesty Paws Probiotic Chews is your top priority. It comes in the form of easy-to-chew soft tablets. Infused with the enzymes extracted from pumpkin and papaya, along with probiotics, this supplement can help your canine stabilize their gut health. It also boosts your pet’s digestive and immune health.
By using this formula, you can deal with your pooch’s stomach issues like gas, diarrhea, and bloating. The six-strain probiotics present are effective at improving your pet’s gut flora and gastrointestinal health.
Best With Limited Ingredients
Native Pet Probiotic Supplement

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Why We Love
Good taste
Nutritious formula
No additives or fillers
Rich in protein and fiber
Can be added to meals
Contains research-backed, superior ingredients
But…
High price
To give your four-legged companion all the natural gut flora, try introducing Native Pet’s Probiotic Supplement to them. It is enriched with organic pumpkin seed, Jerusalem artichoke, and probiotics to deal with your pet’s stomach issues like gas, bloating, diarrhea, etc. The supplement is available in powder form and is easy to provide to your canine.
This vet-nutritionist-approved formula supports your pet’s digestive health and helps with diet transitions. You can even help tackle their allergies using this supplement.
Best Natural Blend
Pet Honesty Probiotics

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Why We Love
No useless fillers
Helps with diarrhea
Gives an added boost of fiber
Great for everyday wellness
No artificial preservatives, colors, or flavors
Made with natural & other premium ingredients
But…
It has an unpleasant smell
Pet Honesty Probiotics are vet-recommended chews that are formulated to give your four-legged companion a happy tummy! It is loaded with probiotics and digestive enzymes derived from pumpkin and papaya that help balance gut bacteria and enhance your pet’s immunity.
The enzymes help break down nutrients and aid digestion, along with bowel health.
The supplement’s pumpkin-flavored taste is loved by many breeds. These chews are free from wheat, soy, or corn, which is great for sensitive skin. With this probiotic, you can help your furry friend stay healthy and have a lustrous coat.
Best With Digestive Enzymes
NaturVet Advanced Probiotics & Enzymes

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Why We Love
Provides digestive support
Great for sensitive stomachs
Most effective ingredients
Suitable for all breeds
But…
Slightly smelly
NaturVet brings you this veterinarian-formulated supplement that helps keep your pet’s GI tract healthy. The formula contains enzymes like alpha-amylase, cellulase, lipase, and protease, along with 1 billion Bacillus subtilis PB6 probiotics. These enzymes help break down food for better assimilation and absorption of nutrients.
If your dog has a sensitive stomach, then this wheat-free formula is safe for help them. Created in a soft chew form, this supplement can easily make its way to your dog’s body.
How We Chose the Best Dog Probiotics?
At DogTime, we prioritize providing you with well-researched information to help you make better purchases. After numerous in-depth discussions with veterinarians, nutritionists, and pet owners, we have curated this list of the best dog probiotics. Our best options are listed here; you can trust them for your canine!
FAQ
What is the best probiotic for dogs in 2025?
Purina Pro Plan FortiFlora and Zest Paws are some of the best probiotics for dogs in 2025.
Is FortiFlora a good probiotic for dogs?
Yes, FortiFlora is a good probiotic for dogs. It is gentle, enriched with antioxidants, and supports immune health.
Is it OK to give dogs probiotics every day?
Yes, it is okay to give dogs probiotics every day.
What are the side effects of FortiFlora?
FortiFlora has no major side effects. However, it may not be best for sensitive immune systems.
Is too much FortiFlora bad for dogs?
Too much of any probiotic, be it FortiFlora or any other brand, is bad. Every supplement should be given in the recommended quantity only.
What is the most powerful probiotic?
Yogurt and kefir are some of the most powerful probiotics, as they contain multiple strains of powerful and good bacteria that can keep your pet’s gut healthy.
What is the best probiotic for dogs on long-term antibiotics?
Bacillus subtilis and Bacillus coagulans are some of the best probiotics for dogs on long-term antibiotics.
What is the #1 probiotic?
Purina’s Veterinary Diet is the #1 probiotic, as it contains antioxidants and helps improve a dog’s digestive health.
What probiotics do vets use?
Purina’s Veterinary Diet is a veterinary diet range formulated to keep your pet’s gut health in good shape.
Is it OK to give FortiFlora every day?
Yes, it is okay to give your pet a sachet of FortiFlora every day to improve its immune and gut health.
What is the top brand of probiotics?
Purina’s Veterinary Diet is the top brand of probiotics.
Is Purina probiotic good?
Purina is a good probiotic supplement that works on improving a dog’s intestinal and immune health.
Do vets prescribe probiotics for dogs?
Vets usually prescribe probiotics for dogs if there is a gut issue or digestive problem.
How long should a dog be on probiotics?
It is suggested that you provide your dog with probiotics for weeks or even months if their gut health has deteriorated badly.