Reviewed & Fact-Checked By
Dr. Paola Cuevas
Veterinarian, MVZ
Reviewed & Fact-Checked By
Dr. Paola Cuevas
Veterinarian, MVZ
The information is current and up-to-date in accordance with the latest veterinarian research.
Our dogs are a part of our family, so we do everything to ensure they’re healthy, happy, and loved. So, whether your dog is a puppy or getting up there in years, you’re going to do whatever you can as a pet parent to achieve those three things.
If your furry friend is having a problem with digestion, using the bathroom, or even seasonal allergies, you’re going to make him an appointment with the closest vet. If your vet has recommended probiotics for your dog, then you’re probably wondering what the best one out there is.
We’re here to help you with that. In this guide, we’ll give you our reviews of the best 10 probiotics for dogs in our opinion, and even give you a sort of a buying guide to help you make that final decision afterward, so you can make an informed decision on which probiotics to purchase and give to your pet.
A Quick Look at Our Favorites for 2023
Image Product Details
Best Overall
Purina Pro Plan FortiFlora
Contains essential antioxidants and vitamins
Recommended by vets
Easy to use and digest
Check Price
Best Value
Nusentia Premium Blend Supplement
Budget-Friendly
Made in the USA
Shelf-stable and contains 6 strains of probiotics
Check Price
Premium Choice
Zesty Paws Soft Chews Supplement
Eases Digestion
6 strains of probiotics and prebiotics
All-natural
Check Price
Best for Puppies
The Honest Kitchen Probiotics
Strengthens the immune system
Easy to digest
Supports healthy development and growth
Click to Save 30% Use code PETKEEN30
Amazing Nutritionals Probiotic
Works great for older dogs
Supports digestive health
Supports mobility
Check Price
The 10 Best Probiotics for Dogs
In our opinion, the best overall probiotic for dogs would have to be Purina Pro Plan Veterinary Diets Fortiflora Powder Supplement. Not only does the supplement contain probiotics, but it also contains essential antioxidants and vitamins that your dog needs for gut health and overall health as well. This supplement is often recommended by vets and is easy for dogs to digest. In addition, since it comes in powder form, it’s simple to use as a food topping, so your dog never knows he’s getting something good for him along with his daily food.
Life Stage: Puppy, Adult, Senior
Breed Size: All Sizes
Food Form: Topping, Supplement
Product Form: Powder
Special Diet: Vet Diet
Check Price on Chewy
The only drawbacks to this product include it being a little expensive for some pet owners’ budgets. It’s also possible that this product won’t work for every dog, so make sure to do your research ahead of time.
Pros
Contains essential antioxidants and vitamins
Recommended by vets
Easy to use and digest
Cons
It may not work with every dog
Might be a bit expensive for some budgets
At number two on our list is the best probiotic for dogs for the money. We put Nusentia Probiotic Miracle Premium Blend Supplement in this spot because of its affordability and the fact that it’s made in the United States. This supplement is a powder and can be mixed in with your dog’s food or used as a food topping.
Contains essential antioxidants and vitamins
Recommended by vets
Easy to use and digest
- Contains essential antioxidants and vitamins
- Recommended by vets
- Easy to use and digest
It may not work with every dog
Might be a bit expensive for some budgets
- It may not work with every dog
- Might be a bit expensive for some budgets
Life Stage: Puppy, Kitten, Senior, Adult
Breed Size: All Sizes
Food Form: Topping, Supplement
Product Form: Powder
Special Diet: Non-GMO, Gluten-Free
It contains six strains of probiotics and is shelf-stable, meaning you don’t have to refrigerate it or worry about it going bad.
The only negatives to this supplement include pet owners saying it caused upset stomach in their dogs, meaning it might not be for every dog. It has also been reported that the supplement isn’t something all dogs will eat, even if it’s mixed in with their food.
Pros
Budget-Friendly
Made in the USA
Shelf-stable and contains 6 strains of probiotics
Cons
Causes an upset stomach in some dogs
Some dogs refuse to eat food with it on it
At number three on the list and our premium choice is Zesty Paws Probiotic Bites with Natural Digestive Enzymes Chews for Dogs. This is a soft chew supplement that’s all-natural and contains six strains of probiotics and prebiotics. In addition, the supplement contains natural digestive enzymes, which help to ease your pet’s digestion, and works great for pets from small to big.
Budget-Friendly
Made in the USA
Shelf-stable and contains 6 strains of probiotics
- Budget-Friendly
- Made in the USA
- Shelf-stable and contains 6 strains of probiotics
Causes an upset stomach in some dogs
Some dogs refuse to eat food with it on it
- Causes an upset stomach in some dogs
- Some dogs refuse to eat food with it on it
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Soft Chew
Special Diet: Grain Free, No Wheat, Soy, or Corn
The only negatives to this soft chew are that some pets don’t seem to like the taste and some pet owners reported the product smelled horrible when they opened the package, making their pets not want to touch them.
Pros
Eases Digestion
6 strains of probiotics and prebiotics
All-natural
Cons
Some pets don’t like the taste
Some owners report the supplement smelling horrible
- The Honest Kitchen Daily Boosters Probiotics- Best for Puppies
Check Price on The Honest Kitchen Check Price on Chewy
Use code PETKEEN30 to SAVE 30% on your first order over $30 on thehonestkitchen.com
Life Stage: Kitten, Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement, Topping
Product Form: Powder
Special Diet: No Corn, Wheat, or Soy, Grain-Free, Non-GMO, Pea-Free, Human-Grade, Gluten-Free
The Honest Kitchen Daily Boosters Probiotics slips in at number four as our pick for the best probiotic for puppies. Not only is this powder easy for their little stomachs to digest, but it also supports healthy development and growth, as well as strengthening their little immune systems. We all know that puppies tend to eat whatever they can get their mouths around, so this daily booster probiotic can help keep their tummies settled and their bowels moving also.
Eases Digestion
6 strains of probiotics and prebiotics
All-natural
- Eases Digestion
- 6 strains of probiotics and prebiotics
- All-natural
Some pets don’t like the taste
Some owners report the supplement smelling horrible
- Some pets don’t like the taste
- Some owners report the supplement smelling horrible
Check Price on The Honest Kitchen Check Price on Chewy
Check Price on The Honest Kitchen
- Use code PETKEEN30 to SAVE 30% on your first order over $30 on thehonestkitchen.com
It has been reported that some puppies don’t like the taste of the powder but mixing it in with their food should help with that. This supplement also works for cats and any life stage of dogs as well.
Pros
Strengthens the immune system
Easy to digest
Supports healthy development and growth
Cons
Some puppies don’t like the taste
We all have a loyal pet dog that’s getting up there in years at some point in our lives. That’s why we have Amazing Nutritionals Probiotic Joint & Hip Support Supplement at number five on our list. Though this supplement works for any life stage, it works the best for older dogs. This chewable tablet has helped many older dogs who suffer from joint pain, arthritis, and even stiffness as they age.
Strengthens the immune system
Easy to digest
Supports healthy development and growth
- Strengthens the immune system
- Easy to digest
- Supports healthy development and growth
Some puppies don’t like the taste
- Some puppies don’t like the taste
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Chewable Tablet
Special Diet: No Corn, Wheat, or Soy, Grain-Free
The supplement supports digestive health and mobility at any stage of life but works great for older dogs who really need it to get around.
Some owners have reported the chewable tablets being too hard for their older dogs to chew.
Pros
Works great for older dogs
Supports digestive health
Supports mobility
Cons
Some owners reported the tablets as being too hard to chew
Many of our furry pals suffer from allergies as well as digestive issues. If you’re searching for something that’s an immune supplement and an allergy reliever at the same time, then our number six choice, Zesty Paws Aller-Immune Soft Chews Allergy & Immune Supplement, could be the right choice for you.
Works great for older dogs
Supports digestive health
Supports mobility
- Works great for older dogs
- Supports digestive health
- Supports mobility
Some owners reported the tablets as being too hard to chew
- Some owners reported the tablets as being too hard to chew
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Soft Chew
Special Diet: Indoor, No Wheat, Soy, or Corn, Grain-Free
This supplement is a soft chew that dogs often think are treats. It contains five strains of probiotics, which means it’s not the strongest probiotic on our list, but since it helps combats allergies, it’s worth a try. The only drawback we saw of this probiotic supplement is that it might not work for every breed of dog. However, if you do your research well or talk to your vet, you should be able to tell.
Pros
Helps with allergy issues
Contains five strains of probiotics
Dogs think they are treats
Cons
May not work for all dogs
- Florazil + MultiProbiotic Food Spray for Dogs
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Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Food Spray
Special Diet: No information given
Sometimes no matter how hard you try, whether it’s a powder, soft chew, or a plain old pill, you just can’t get your dog to take the probiotic supplement you are trying to give him. That’s where number seven on our list, Florazil + MultiProbiotic Food Spray for Dogs, comes in. It’s easy to use because all you do is spray it on top of your dog’s food, and it’s said to make their food taste even better. This spray is also vet recommended, which should give you some confidence.
Helps with allergy issues
Contains five strains of probiotics
Dogs think they are treats
- Helps with allergy issues
- Contains five strains of probiotics
- Dogs think they are treats
May not work for all dogs
- May not work for all dogs
Check Latest Price
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Food Spray
Special Diet: No information given
This product may not work for all dog breeds, and some pet owners reported that it had a horrible smell when sprayed on the food.
Pros
Easy to use
Vet recommended
Makes food taste better
Cons
Might not work for all dogs
Some bottles had a bad smell
- PetVitalityPRO Probiotics for Dogs with Natural Digestive Enzymes
Check Latest Price
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Soft Chew
Special Diet: Non-GMO, Grain-Free
At number eight on our list of top 10 best probiotics for dogs is PetVitalityPRO Probiotics for Dogs with Natural Digestive Enzymes. This supplement includes a green superfood formula, which gives your dog the vitamins and minerals he needs. It also works to build immunity, get rid of gas, allergies, skin that itches, hot spots, and cures bad breath and yeast problems.
Easy to use
Vet recommended
Makes food taste better
- Easy to use
- Vet recommended
- Makes food taste better
Might not work for all dogs
Some bottles had a bad smell
- Might not work for all dogs
- Some bottles had a bad smell
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Soft Chew
Special Diet: Non-GMO, Grain-Free
Users have reported that it works fast and that the soft chew crumbles into food easily for the picky pets in the bunch.
The superfood formula does give the soft chews an unappetizing-looking greenish tint, and it may not work as intended for all dog breeds.
Pros
Crumble easily for picky dogs
Includes a green superfood formula
Works fast
Cons
Has a greenish tint
May not work for all dogs
At number nine on our list is Pet Ultimate’s Probiotics for dogs. This supplement comes in powder form and contains 22 strains of probiotics, the most of any probiotic on our list. It’s easy to use and is said to be tasteless, so you don’t have to fight your dog to take it. It also comes with a satisfaction guarantee in case it doesn’t work for your pet. However, it is essential to note that this product might not be suitable for all dog breeds. With the satisfaction guarantee, however, it’s certainly worth checking out to see if it helps your dog with digestive issues and other issues he might need a probiotic for.
Crumble easily for picky dogs
Includes a green superfood formula
Works fast
- Crumble easily for picky dogs
- Includes a green superfood formula
- Works fast
Has a greenish tint
May not work for all dogs
- Has a greenish tint
- May not work for all dogs
Life Stage: Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Powder
Special Diet: Grain-Free
Pros
Contains 22 strains of probiotics
Easy to use and tasteless
Has a satisfaction guarantee
Cons
May not work for all dogs
Finally, sliding in at number 10 on our list is Nutramax Proviable-DC Capsules Dog & Cat Supplement. This supplement is said to act fast, be easy to use, as it’s in capsule form. It also contains live cultures, which is great for your dog’s health. You can give the capsule to your dog, or if he’s a super picky eater, you can wrap it inside of a dog treat or even open the capsule and sprinkle it on his food.
Contains 22 strains of probiotics
Easy to use and tasteless
Has a satisfaction guarantee
- Contains 22 strains of probiotics
- Easy to use and tasteless
- Has a satisfaction guarantee
Life Stage: Kitten, Puppy, Senior, Adult
Breed Size: All Sizes
Food Form: Supplement
Product Form: Capsule
Special Diet: No information given
This supplement might not work on all dog breeds, and many users have reported the supplement working, then when they ordered more, it seemed that the company might have changed the formula.
Pros
Acts fast
Contains live cultures
Easy to use
Cons
May not work for all dog breeds
The formula may have been changed
Acts fast
Contains live cultures
Easy to use
- Acts fast
- Contains live cultures
- Easy to use
May not work for all dog breeds
The formula may have been changed
- May not work for all dog breeds
- The formula may have been changed
Buyer’s Guide: How to Choose the Best Probiotics for Dogs
Now that we’ve reviewed the best probiotics for your dog, we’ll talk a little bit about the benefits and side effects of probiotics below. If you’re worried about giving probiotics to your pet, it’s best to make an appointment with your local vet for recommendations and to see if your dog needs or can be treated with these supplements.
What Are the Benefits of Probiotics?
The benefits of probiotics in dogs are apparent. Depending on which and how many strains are used in the probiotic supplement, probiotics can help with the following.
Improved digestion and GI tract health
Reduced risk of intestinal worms
Better quality of stool
Fresher breath and oral health
Develops a stronger immune system
Helps with skin issues and allergies
Ear infections
Probiotics can also help your dog to relax and be less stressed because of the benefits above.
- Improved digestion and GI tract health
- Reduced risk of intestinal worms
- Better quality of stool
- Fresher breath and oral health
- Develops a stronger immune system
- Helps with skin issues and allergies
- Ear infections
What Are the Side Effects of Probiotics?
While there seem to be very few side effects with probiotics, it is possible that your dog could have a reaction to them. Loose stool, gas, constipation, and bloating have been reported by pet owners before. It’s best not to switch up your probiotics for your dog because this increases the risk of side effects, such as the ones above. If you’re unsure of what to give your dog when it comes to probiotics, it’s best to contact your vet for recommendations.
Final Thoughts
This concludes our reviews of the top 10 best probiotics for dogs, in our opinion. Our first-place spot goes to Purina Pro Plan Veterinary Diets Fortiflora Powder Supplement for its use of essential antioxidants and easy-to-use formula. At number two on the list is Nusentia Probiotic Miracle Premium Blend Supplement for its affordability and shelf stability. Finally, spot number three goes to Zesty Paws Probiotic Bites with Natural Digestive Enzymes Chews for Dogs for the six strains of probiotics and prebiotics it contains.
We hope our reviews and buying guide help you to find the best probiotic to keep your dog healthy for many years to come.
Featured Image Credit: Lee waranyu, Shutterstock
