Top 10 Probiotics for Dogs: Vet-Approved Choices

2024’s Best Dog Probiotics for Allergies, Diarrhea, Yeast, and More!

Updated on
July 19, 2024

1. The 10 Best Probiotics for Dogs

Selecting the top probiotics for dogs was not an easy task.

To help us pick the best ones from a wide selection, we used the following criteria:

  • CFUs (Colony Forming Units): Higher CFUs generally indicate a more potent product.
  • Bacterial Strains: More strains can mean a more comprehensive probiotic.
  • Price: More affordable options get a higher rank.
  • Prebiotic Included: Prebiotics can enhance the effectiveness of probiotics.
  • Refund Policy: A better refund policy can indicate product confidence.
  • Best For: The variety of conditions it helps with.
  • Contains: Fewer undesirable ingredients are better.

We believe the rankings are well-justified based on a combination of factors including CFU count, the variety of bacterial strains, price, inclusion of prebiotics, refund policies, and the presence of undesirable ingredients. Each product was carefully evaluated to ensure it provides the best value and efficacy for improving your dog's digestive health and immunity.

The top-ranked probiotics offer high potency, a comprehensive range of beneficial bacteria, and favorable customer policies, ensuring your pet receives the best possible care. Our goal is to help you make an informed decision, knowing that your dog's health and happiness are our priority.

Here are the top 10 probiotics for dogs, ranked from best to good:

Probiotics for Dogs

Tails ‘N’ Tummies

July 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
60 Days
Average Rating:
4.5

Best Review

“I was initially skeptical about the effectiveness of Tails n Tummies probiotics due to mixed reviews of probiotics and the ongoing challenges with my dog's allergies. Despite her being on multiple medications for skin issues, she continued to suffer from raw, itchy skin. However, since starting Tails n Tummies probiotics, there has been a significant improvement in her skin condition, and she appears much more comfortable overall. HIGHLY recommend!”

Worst Review

“2 weeks in, no difference at all. Absolutely no difference at all, still itching, licking, getting hit spots and poop has not changed.”

Ingredients

Lactobacillus plantarum 6595, Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Natural Pork Flavor, Dried Apple Pomace/Dried Citrus Pulp, Stearic Acid, Sodium Carbonate

Bacterial Strains

Lactobacillus plantarum 6595

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

1
Billion Per Tablet

Count

60
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Time-release formula for sustained benefits
  • Gluten-free, suitable for sensitive dogs
  • 2-pack options for cost savings

Cons

  • Limited flavor options
  • Large dogs will need two bottles or more

The Final Woof

Tails ‘N’ Tummies ranks first due to its excellent combination of high CFU count, inclusion of a beneficial strain, prebiotics, and a favorable refund policy. With 1 billion CFUs per tablet, it ensures a potent dose of probiotics, which is crucial for maintaining your dog's digestive health. The presence of Lactobacillus plantarum 6595, a well-regarded strain, enhances its efficacy. Additionally, the product includes prebiotics, which support the growth of beneficial bacteria. A 60-day refund policy indicates confidence in the product's effectiveness, making it a reliable choice. While slightly more expensive than some other options, its comprehensive benefits justify the cost.

Read Full Review

Probiotics for Dogs

Proviable

$38.99

July 19, 2024

Visit Chewy
Free Shipping:
No
Refunds:
No
Average Rating:
4.7

Best Review

“I use this for my two cats & one dog. I do not give them the capsule itself, just open them up and sprinkle it. For the dog, I mix it in with the dog’s food once a day. Since my cats tend to graze on each other’s food, I mix it instead with a portion of the treat paste they love. That way I can regulate their intake and insure that each gets a full serving. Works great!”

Worst Review

“This made my dog ill. I bought it because he was having occasional tummy issues and his burps smelled like Sulphur. One dose, and he had violent diarrhea. I skipped two days, then gave it to him again with the same results. It's going in the trash.”

Ingredients

Fructooligosaccharide, Gum Arabic, Maltodextrin, Dried Enterococcus faecium Fermentation Product, Dried Bifidobacterium bifidum Fermentation Product, Gelatin, Dried Streptococcus thermophilus Fermentation Product, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus bulgaricus Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Lactobacillus plantarum Fermentation Product, Magnesium Stearate, Ascorbic Acid, and Titanium Dioxide

Bacterial Strains

Enterococcus faecium NCIMB 30183, Streptococcus thermophilus NCIMB 30189, Lactobacillus helveticus NCIMB 30184, Lactobacillus delbrueckii NCIMB 30186, Lactobacillus casei NCIMB 30188, Bifidobacterium bifidum NCIMB 30179, Lactobacillus plantarum NCIMB 30187

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

5
Billion Per Capsule

Count

80
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Suitable for both dogs and cats
  • Capsules can be sprinkled on food for easy administration

Cons

  • Higher cost per serving
  • Lacks a refund policy

The Final Woof

Proviable takes the second spot due to its incredibly high CFU count and variety of strains. With 5 billion CFUs per capsule and multiple strains, it offers a robust solution for gut health and immunity. However, it is more expensive than Tails ‘N’ Tummies and lacks a refund policy, which slightly impacts its overall ranking. The inclusion of prebiotics still makes it a strong contender, especially for pet owners looking for a potent and varied probiotic supplement.

Read Full Review

Probiotic Dog Chews

Pawfy

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
30 Days
Average Rating:
3.3

Best Review

“After boarding for several days in a new boarding facility that lets all dogs run free, our Yorky didn't eat or drink for 3 days and developed pancreatitis and almost lost her. The vet suggested a probiotic to balance out her digestive system. It worked great getting her straightened out and helps her bowels be consistently like they should. She has always ate Science Diet kibbles and does great with that. She only gets occasional small bites of table foods, but only vegetables.”

Worst Review

“Great reviews made me want to try these. My pup is extra large so I'd need to give her more than one a day which makes these costly. But I'd have paid it if they worked. Unfortunately, they had the reverse result for her - bad poops and chewing on the paws got worse. Still looking for something to replace Dr. Lyons, which was the only probiotic that worked for her.”

Ingredients

Turmeric (Organic), Yucca Schidigera Extract, Black Pepper (Organic), Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus fermentum, Lactococcus lactis, Vitamin E (d-alpha tocopherol), Vitamin C(Ascorbic Acid), Vitamin B1 (Thiamine), Pantothenic Acid, Vitamin B2 (Riboflavin), Manganese, Biotin, Vitamin B-12 Flaxseed Meal, Glycerin (Vegetable), Inulin, Mixed Tocopherols, Natural Chicken Flavor (Vegetarian), Oat Flour, Palm Fruit Oil (Organic, RSPO), Rice Flour, Rosemary Extract, Sorbic Acid (Natural Preservative), Sunflower Lecithin.

Bacterial Strains

Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus fermentum, Lactococcus lactis

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

3
Billion Per Chew

Count

30
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Organic ingredients
  • Variety of flavors including bacon & turkey and chicken

Cons

  • Contains fillers and grains
  • Only suitable for puppies 6 months and older

The Final Woof

Pawfy ranks third, offering a good balance of CFUs and bacterial strains. With 2.5 billion CFUs per chew and multiple strains, it provides a significant boost to your dog's digestive and immune systems. The product also includes prebiotics and comes with a 30-day refund policy, offering some level of consumer protection. However, the presence of fillers and grains slightly diminishes its appeal compared to the top two products.

Read Full Review

Probiotics for Dogs

Purina Fortiflora

$30.99

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
60 Days
Average Rating:
4.7

Best Review

“We use this in our shelter, so I wanted to see first hand, on a more regular basis how well it works. My dogs went from a little on the mushy side to a “perfect” consistency in only two days. It’s also helped with my OCD-doggo’s occasional need to immediately clean up after his sister.”

Worst Review

“I started using Flortiflora and was very pleased, but after using for a couple weeks I noticed that my dog's hearing had decreased dramatically. In the past she had the same reaction. She has not taken the product for about a week and her hearing is gradually returning.”

Ingredients

Animal Digest, Enterococcus faecium, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Brewers Dried Yeast, Vitamin E Supplement, Zinc Proteinate, Beta-Carotene, Salt, Manganese Proteinate, Ferrous Sulfate, Copper Proteinate, Calcium Iodate, Sodium Selenite

Bacterial Strains

Enterococcus faecium SF68

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

100
Million Per Gram

Count

30
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Easily mixed with food
  • Affordable price

Cons

  • Contains animal digest and byproducts
  • Lower CFU count per gram
  • No prebiotics included

The Final Woof

Purina Fortiflora is fourth, primarily due to its lower CFU count but strong brand reputation. With 100 million CFUs per gram, it is less potent than the top three but still effective for digestive health. The inclusion of Enterococcus faecium SF68 is beneficial, though the absence of prebiotics is a downside. Despite containing some undesirable ingredients, its affordability and 60-day refund policy make it a reliable option for many pet owners.

Read Full Review

Probiotic Nutritional Supplement

Advita

$23.00

July 19, 2024

Visit Chewy
Free Shipping:
Varies
Refunds:
Varies
Average Rating:
4.7

Best Review

“Same product I was purchasing from my veterinarian. I’m so happy that I can purchase it here without a prescription. Give it to my dog mixed in with her food.”

Worst Review

“Our dog can not tolerate something in this powder. I don’t know what it is but when I started him on a very small dose to start all of a sudden he was ‘scooting’ all the time! I have 2 boxes and missed the return window...Need to go back to previous brand.”

Ingredients

Dried Poultry Liver, Dried Enterococcus faecium Fermentation Product, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Bacillus coagulans Fermentation Product, Maltodextrin, Dicalcium Phosphate, Silicon Dioxide, Salt, Inulin, Ascorbic Acid (Vitamin C), Vitamin A Acetate, Vitamin E Supplement, Zinc Proteinate, Manganese Proteinate, Ferrous Sulfate, Copper Proteinate, Sodium Selenite

Bacterial Strains

Enterococcus faecium, Lactobacillus acidophilus, Lactobacillus casei, Bacillus coagulans

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

200
Million Per Gram

Count

60
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Suitable for both dogs and cats
  • Available in powder form for easy mixing

Cons

  • Variable refund policy
  • Contains artificial flavors and fillers

The Final Woof

Advita comes in fifth, providing a reasonable CFU count and multiple strains. With 200 million CFUs per gram, it offers moderate potency. The inclusion of prebiotics is a plus, but the variability in refund policy and presence of fillers make it less appealing than the higher-ranked options. It remains a good choice for those looking for a balanced probiotic with immunity benefits.

Read Full Review

Probiotics for Dogs

Visbiome

-

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
60 Days
Average Rating:
4.9

Best Review

⁦”My IBD Yorkie had a random bout of recurring diarrhea that his normal antibiotics didn’t get a hold on. After 3 weeks of no improvement I bit the bullet and place an order for Visbiome; his doctor had been recommending it for months but its definitely pricey. This seems to have put an end to the cycle. He’s small enough to get away with using half doses. These come in capsules which are way too big for any dog under 30000 pounds so i just open the capsule and dump the contents into a syringe and mix it with water and prebiotics. He doesn’t mind the taste.”

Worst Review

⁦”Purchased this based on our vet's recommendation to help control our dog's IBD. Unfortunately the product didn't work at all. As a matter of fact, it caused more stomach upset and extreme diarrhea. It may work for other dogs, but it definitely didn't work for our AmStaff mix. A very expensive trial, just to learn this product worsened his IBD symptoms.”

Ingredients

Lactobacillus acidophilus DSM24735™/SD5212, Lactobacillus plantarum SD5209 DSM24730™, Lactobacillus paracasei DSM24733™/SD5218, Lactobacillus delbrueckii subsp. bulgaricus DSM24734™/SD5210, Streptococcus thermophilus DSM24731™/SD5207, Bifidobacterium longum± DSM24736™/SD5220, Bifidobacterium breve DSM24732™/SD5206, Bifidobacterium infantis± DSM24737™/SD5219, Inulin (Chicory Root Fiber)*

Bacterial Strains

Lactobacillus acidophilus DSM24735™/SD5212, Lactobacillus plantarum SD5209 DSM24730™, Lactobacillus paracasei DSM24733™/SD5218, Lactobacillus delbrueckii subsp. bulgaricus DSM24734™/SD5210, Streptococcus thermophilus DSM24731™/SD5207, Bifidobacterium longum± DSM24736™/SD5220, Bifidobacterium breve DSM24732™/SD5206, Bifidobacterium infantis± DSM24737™/SD5219*

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

225
Billion Per Packet

Count

30
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Extremely high CFU count per packet
  • Multiple strains for comprehensive gut health

Cons

  • High price point
  • Contains dairy, not suitable for lactose-intolerant dogs
  • Limited flavor options
  • Only available on their website

The Final Woof

Visbiome ranks sixth due to its extremely high CFU count of 225 billion per packet, making it the most potent product on the list. It includes multiple strains and prebiotics, offering comprehensive gut health benefits. However, its high price and the presence of dairy limit its accessibility for some pet owners. The 60-day refund policy is a positive aspect, ensuring customer satisfaction.

Read Full Review

Probiotics for Dogs

PetLab Co.

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
30 Days
Average Rating:
4.5

Best Review

“Love these. My French bulldogs have 0 issues with skin or digestion because they have been on these since I brought them home.”

Worst Review

“I have a 4 year old Bernese mountain dog and he licks and bites at his paws day and night. He weights 150lbs. I give him 4 tablets every day. His paws are turning reddish purple. What can I do?”

Ingredients

A Proprietary Blend of Probiotics (Bacillus coagulans, B. clausii, B. subtilis), Fructooligosaccharide (FOS), Galactooligosaccharides (GOS), Synergistic Yeast Postbiotic Blend (Saccharomyces cerevisiae, Cyberlindnera jadinii), Apple Cider Vinegar, Coconut Glycerin, Coconut Oil, Dried Brewer’s Yeast, Hickory Smoke Flavor, Lecithin, Maltodextrin, Rosemary Extract, Salmon Hydrolysate, Sunflower Oil, Sweet Potato

Bacterial Strains

Bacillus coagulans, B. clausii, B. subtilis

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

3
Billion Per Chew

Count

30
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Includes a blend of probiotics for added benefits

Cons

  • Contains several allergens (corn, soy, fish)
  • Higher cost per chew
  • May not be suitable for dogs with severe allergies

The Final Woof

PetLab Co. is in seventh place, offering 3 billion CFUs per chew and multiple beneficial strains. The inclusion of prebiotics and a 30-day refund policy make it a strong contender. However, the presence of several undesirable ingredients like corn and soy lowers its ranking compared to more natural options.

Read Full Review

Probiotic Bites for Dogs

Zesty Paws

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
Other
Average Rating:
4.5

Best Review

“We just move from MX to US, he is doing normally but due natural moving stress, he struggled to poop as normally. I gave him the bites and he loved them, (recommended dose 2) today we went out and he did as normal, I will continue giving the probiotics to help him to regulate his goat health.”

Worst Review

“I was so excited to try these and help my dogs with their gut health but my dogs ended up getting sick from these and puking. Definitely won't be buying.”

Ingredients

Six Strain Gut Health Blend (Bacillus subtilis DE111, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus fermentum, Lactococcus lactis), Citric Acid (a preservative), Coconut Glycerin, Flaxseed, Garbanzo Flour, Mixed Tocopherols (a preservative), Natural Flavor (from Oregano, Flaxseed and Plum), Natural Vegetable Flavoring, Palm Oil, Papaya, Pea Flour, Powdered Cellulose, Pumpkin, Rosemary Extract, Sunflower Lecithin, Tapioca Flour.

Bacterial Strains

Bacillus subtilis DE111®, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus fermentum, Lactococcus lactis

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

3
Billion Per Chew

Count

90
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Variety of flavors: bison, chicken, and pumpkin

Cons

  • Contains tree nuts, not suitable for dogs with nut allergies
  • Ambiguous refund policy
  • Moderate CFU count

The Final Woof

Zesty Paws ranks eighth, providing a well-rounded probiotic with 3 billion CFUs per chew and multiple strains. It includes prebiotics and is reasonably priced. The product's refund policy is less clear, which affects its ranking. The presence of tree nuts is also a downside for dogs with allergies.

Read Full Review

Digestive Probiotics

PetHonesty

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
30 Days
Average Rating:
4.5

Best Review

“She has a good kibble and only single ingredient treats. She's happy and healthy but in the back of my mind I worried a little about her eating grass, she would eat it daily, thought maybe she just really likes it, but on the 2nd day of using these probiotics she no longer eats grass... will definitely keep using.”

Worst Review

“My dog has loved these and taken then for a well over a year. Got a new container and he won’t go near them. They smell, texture and even look is completely different. Time to find a new company probiotic for my dog.”

Ingredients

Pumpkin, Lactobacillus Acidophilus, Lactobacillus Plantarum, Lactobacillus Brevis, Lactobacillus Fermentum And Lactococcus Lactis With Fos., Enzyme Blend (Amylase, Protease, Lipase, Cellulase, Lactase, Bromelain), Greek Yogurt (Nonfat Dry Milk, Lactic Acid), Chicory Root (Inulin), Oat Flour, Palm Oil, Brewer's Yeast, Ground Flaxseed, Sweet Potato Powder, Carrot Powder, Carob Powder, Dried Aspergillus oryzae Fermentation Extract, Dried Aspergillus niger Fermentation Extract, Dried Trichoderma reesei Fermentation Extract, Dried Pineapple Stem, Papaya, Sunflower Lecithin, Powdered Cellulose, Pumpkin Powder, Dried Chicory Root, Coconut Glycerin, Natural Flavor, Fenugreek Powder, Dried Bacillus subtilis Fermentation Product, Dried Bacillus coagulans Fermentation Product, Dried Lactobacillus acidophilus Fermentation Product, Bifidobacterium bifidum Fermentation Product, Lactococcus lactis Fermentation Product, Lactobacillus plantarum Fermentation Product, Lactobacillus brevis Fermentation Product, Enterococcus faecium Fermentation Product, Lactobacillus fermentum Fermentation Product, Citric Acid (Preservative), Mixed Tocopherols (Preservative), and Rosemary Extract

Bacterial Strains

Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus brevis, Lactobacillus fermentum

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

6
Billion Per Serving

Count

90
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • High CFU count per serving
  • Multiple strains for gut health

Cons

  • Contains diary and gluten
  • Limited to dogs older than 6 months
  • Contains fillers and yeast

The Final Woof

PetHonesty is ninth, offering 6 billion CFUs per serving and a variety of strains. The inclusion of prebiotics and a 30-day refund policy are positives. However, it contains several undesirable ingredients like dairy and fillers, which affect its overall appeal despite its potency and variety.

Read Full Review

Digestive Probiotics

Finn

August 19, 2024

Visit Chewy
Free Shipping:
On Website
Refunds:
60 Days
Average Rating:
4.3

Best Review

“I believe the dogs enjoyed it. They just think they are getting another treat! Easy to dispense when they are so cooperative.”

Worst Review

“I was hoping these would work because of the reviews I read & read about how good it was but unfortunately it had the opposite affect for my Rockie. I'm searching for something else…”

Ingredients

Total Microorganisms (Lactobacillus acidophilus, L. fermentum, L. reuteri, L. plantarum, Bifidobacterium bifidum, L. casei subsp. casei), Pumpkin, Inulin, Fructooligosaccharides (FOS), Brewer's Yeast, Tapioca Starch, Vegetable Glycerin, Purified Water, Sunflower Lecithin, Natural Cheese, Safflower Oil, Natural Bacon Flavor, Natural Beef Liver, Organic Honey, Ascorbic Acid, Mixed Tocopherols, Natural Preservative

Bacterial Strains

Lactobacillus acidophilus, L. fermentum, L. reuteri, L. plantarum, Bifidobacterium bifidum, L. casei subsp. casei

Best For

Immunity
Yeast
Digestion
Allergies
Antibiotics

Not For

Immunity
Yeast
Digestion
Allergies

CFUs

3
Billion Per Chew

Count

90
Units

Prebiotics

Yes
No

Form

Tablet
Capsule
Chew
Powder

Flavors

Beef Liver
Duck
Bison
Pumpkin
Salmon
Unflavored
Liver
Bacon
Chicken
Turkey
Not Listed
Pork

Source

USA
Not Listed

Contains

Artificial
Preservatives
Corn
Fillers
Grains
Yeast
Animal
Digest
Byproducts
Artificial
Flavors
Poultry
Dairy
Fish
Pork
Soy
Tree Nuts
Gluten
Lactose

Pros

  • Multiple strains for comprehensive benefits

Cons

  • Contains dairy, fillers, and lactose
  • Moderate CFU count
  • Higher cost per chew

The Final Woof

Petfinn rounds out the top ten, providing 3 billion CFUs per chew and multiple strains. It includes prebiotics and has a 60-day refund policy, making it a reliable option. However, the presence of dairy, fillers, and lactose lowers its ranking. Despite these drawbacks, it remains a good choice for improving your dog's digestive and immune health.

Read Full Review

2. What Are Probiotics for Dogs and What Do They Do?

Probiotics are strains of beneficial bacteria that colonize and grow in the body’s intestinal tract — in humans and animals.

They are part of the microbiome, a more extensive system of bacteria and microbes contributing to body functions.

Research has shown that these good bacteria are essential to both the digestive and immune systems.

Health problems, both major and minor, can occur when there is an imbalance in the types of bacteria in the intestinal tract.

The medical term for this is dysbiosis — when there are more harmful bacteria than beneficial.

There are three prevalent causes of dysbiosis in dogs:

  • Processed dog food high in carbs and harmful ingredients
  • Antibiotics and steroids
  • Stress

Each of these decreases the number of beneficial bacteria in the gut. Now imagine what they can do together.

When a dog has dysbiosis, it can develop intestinal permeability — more commonly known as leaky gut.

And because leaky gut allows foreign bodies to enter the bloodstream from the intestinal tract, inflammation happens.

As you know, inflammation connects to a wide range of illnesses in both humans and dogs.

These illnesses include but are not limited to:

  • Diarrhea, gas, bloating, and other digestive issues
  • Ear, skin, and urinary tract infections
  • Flea, food, and seasonal allergies

We believe that leaky gut is the reason for many ailments in dogs today, and dog owners don’t know it.

But you suspect it, and it is why you want to add probiotics to your dog’s diet.

Because dysbiosis is an imbalance of more bad bacteria than good in the intestinal tract, adding probiotics help restore the balance.

By supplementing it, you can prevent or improve leaky gut, and get rid of any current and future ailments in your dog.

And this is why we recommend probiotics because they genuinely help dogs.

But to maximize its effectiveness, your dog should finish any antibiotics they’re on and eat less processed food.

Otherwise, the probiotics cannot do what they’re supposed to do — promote beneficial bacteria in the gut!

Section #1 Summary

Probiotics are beneficial bacteria that promote a healthy gut in dogs. Processed food, antibiotics, and stress can disrupt the gut balance, leading to leaky gut and health problems. Probiotic supplements can restore this balance and improve overall well-being.

3. Are Probiotics Good for Dogs?

Probiotics support all aspects of canine health and are usually given as a supplement with food to regulate gastrointestinal functioning by ensuring more “good” bacteria than “bad” bacteria in the intestines.

All dogs will experience the following benefits from probiotics:

  • Increased absorption of nutrients in the GI tract
  • Prevention of GI tract infections
  • Regulation of cell motility to reduce the risk of irritable bowel syndrome or constipation
  • Heightened functioning of the immune system
  • Possible prevention of atherosclerosis and osteoporosis in older dogs

Are probiotics good for dogs? Without a doubt — yes!

Common Canine Health Problems

Why give our dogs probiotics? Doesn’t dog food give them enough vitamins and minerals to keep them healthy?

Yes and no. While a well-balanced diet of protein-rich food does satisfy their nutritional needs, dogs can still suffer numerous bacterial infections resulting from wounds, being around infectious dogs and a reduced immune system response that cannot fight off opportunistic infections.

Dogs spread bacterial diseases such as kennel cough, leptospirosis and brucellosis to other dogs as well. Diseases such as Lyme disease and Rocky Mountain Spotted Fever caused by tick bites are also forms of bacterial infections that can debilitate a dog’s health.

Many bacteria-based, canine gastrointestinal illnesses are due to the strong, instinctual urge dogs have to scavenge, which naturally leads to dogs having indiscriminate appetites. Consequently, GI upset characterized by vomiting, diarrhea and constipation frequently affects dogs that spend time roaming outdoors and investigating interesting smells. Moving to a new home, dietary changes, weaning, taking antibiotics and aging can also have detrimental effects on the delicate balance of canine intestinal microflora.

Dogs have 500+ different types of bacteria in their GI tract that are meant to support healthy functioning of the gastrointestinal system. Beneficial bacteria, such as bifidobacteria and L. acidophilus, have the important job of sustaining microbial homeostasis in the canine GI tract so that harmful pathogens do not have the opportunity to colonize there and infect mucous membranes lining the intestines. These good bacteria also regulate systemic and local immune responses to inflammation, help repress precancerous activity and promote conversion of dietary nutrients into bioactive molecules.

When dogs suffer an imbalance of good and bad bacteria in their GI tract, bad bacteria won’t hesitate to take advantage of this dysregulation by proliferating, flourishing and making dogs ill. Unchecked by adequate amounts of good bacteria, harmful bacteria soon take over a dog’s GI tract and can negatively affect a dog’s general health.

What Makes Them Good?

Probiotics can help restore your dog’s health, energy and mood if suffering from one or more of the following symptoms typically caused by an imbalance of intestinal bacteria:

  • Coat and skin issues (excessive shedding, scabs, itchy “hot spots”)
  • Frequent vomiting
  • Decreased appetite/weight loss
  • Seasonal and/or environmental allergies
  • Loose stools/diarrhea/yellow or dark stools
  • Flatulence
  • Yeast infections (topical or internal)
  • Inflammatory disorders of the GI tract (ulcerative colitis, irritable bowel disease)
  • General lethargy, depression, restlessness or unusual aggression

Antibiotic-associated diarrhea (AAD) commonly affects dogs that are taking antibiotics for an extended period. This is because antibiotics tend to kill all bacteria in the dog’s body while also compromising the barrier function provided by microflora in the colon. In response to antibiotics’ overreaching ability to eliminate bacteria, opportunistic pathogens such as Clostridium difficile or Bacteroides spp can easily infiltrate such a vulnerable GI tract and cause a variety of chronic infections.

Section #2 Summary

Probiotics offer numerous health benefits for dogs by promoting a healthy balance of gut bacteria. They can improve digestion, boost the immune system, and even prevent certain chronic diseases. If your dog suffers from skin issues, digestive problems, allergies, or lethargy, probiotics may help restore their health and vitality.

4. Side Effects of Dog Probiotics

Any substance that contains ingredients capable of effecting changes with a living organism is going to produce side effects of varying degrees. Some of these side effects won’t manifest themselves enough to be physically experienced because they occur at the cellular level. Other side effects may extend beyond the cellular level in reaction to the dog’s body chemistry, which may be abnormal due to illness, hormonal irregularities or a compromised immune system.

Probiotic supplements are complete safe to give to dogs since they contain nothing but natural ingredients, i.e., probiotic bacteria that already exist in the canine GI tract. If side effects do occur after giving probiotics to a dog, they are usually associated with digestive issues, such as excess gas, constipation or diarrhea (if you are not already treating the dog for diarrhea). In addition, the dog’s health problems may worsen a bit before completely clearing up as the GI tract adjusts to the sudden influx of “good” probiotic bacteria.

Weakened Immune System in Dogs

Research into lactobacillus included in probiotic supplements has found that L. bacillus may thrive too much in a dog’s immune system weakened by disease, malnutrition or even old age. Although a rare occurrence, overgrowth of lactobacillus may allow bacteria to spill over into the dog’s bloodstream and produce a systemic infection or inflammation.

Allergic Reactions

Experts estimate that only one in a million dogs and people could have an allergic reaction to probiotics for reasons that have yet to be identified. Signs that a dog may be suffering an allergic reaction to one or more of the live bacteria composing probiotic supplements are intense “all over” itching, difficulty breathing, swelling of the tongue and lips and unsteady gait. Dogs exhibiting these symptoms after being given probiotics should be taken to a veterinarian as soon as possible for supportive care.

Low Quality Probiotics

Probiotics manufactured by inferior companies do not care about your dog’s healthy. They are only in the business to make a profit and produce cheap, unstable probiotics that quickly degrade in the dog’s stomach before reaching the intestines. Unless probiotic bacteria reach the dog’s intestines in tact and still retaining all their beneficial properties, they are essentially useless and may even be harmful to the dog once “seeded” in the GI tract.

Another problem with low quality probiotics is that they may labeled “for dogs” but are, in fact, meant for humans. Nearly all bacteria are host-specific, meaning that some bacteria are designed to exist in dogs and some specific to humans. Giving dogs human probiotic supplements may cause side effects that include vomiting, severe diarrhea and dehydration.

Canine-specific bacteria are:

  • L. plantarum
  • Bifidobacterium animalis
  • L. acidophilus
  • L. rhamnosus
  • L. fermentum
  • L. reuteri
  • L. salivarius

Every one of these bacteria can be found in high-quality probiotics formulated especially for dogs. In addition, superior canine probiotics will offer the correct CFU, or “colony forming units”, beneficial to your dog’s health. A probiotic formula’s CFU is the total amount of bacterium in the formula. Some formulas combine all bacteria strains into one CFU count while others will list each strain of bacteria on the label, along with its unique CFU.

The Advantages Outweigh the Risks

In addition to antibiotics causing GI tract disorders, chronic diarrhea, flatulence and appetite loss, other factors such as poor diet, stress, environmental changes and non-antibiotic prescription drugs can also deplete beneficial bacteria in the dog’s intestines. Probiotics not only promote growth of “good” bacteria in your dog’s intestines but will also:

  • Improve digestive processes by facilitating breakdown of consumed food, absorption of vitamins and minerals and removal of toxic waste products
  • May help reduce minor food intolerances and their side effects
  • Reduces inflammation in the GI tract to relieve diarrhea or constipation
  • Increases energy levels by eliminating some chronic health conditions
  • Promotes manufacturing of folic acid, biotin and B vitamins
  • Stimulates and regulates all components of the canine immune system
  • Helps degrade and neutralize food toxins and carcinogens
  • Keeps hormone levels balanced and regulated
  • May reduce the risk of female dogs suffering urinary tract infections

Section #3 Summary

Probiotics offer significant health benefits for dogs, but like any supplement, they can have potential side effects. These are usually mild and digestive in nature, but rare allergic reactions can occur. Ensure you choose high-quality, canine-specific probiotics and consult your veterinarian for guidance.

5. Dog Probiotics for Allergies

What Causes Them?

For reasons not entirely known, the canine immune system sometimes overreacts to substances called allergens (most are proteins). Once these allergens attach to immunoglobulin antibody molecules in the bloodstream, they start targeting mast cells that exist in body tissues and force mast cells to release an inflammatory chemical called histamine. This chemical causes the classic signs of a respiratory allergy attack–itchy eyes, sneezing, swelled mucous membranes and congestion.

Once histamine enters the blood, tissues surrounding blood vessels constrict and leak fluid. This is why nasal and eyes tissues swell, water and redden. In addition, histamine stimulates production of white blood cells that attempt to expel the allergen from the dog’s body by further irritating tissues and making the dog sneeze and cough. How sensitive the dog is to an allergen coupled by how long he is exposed to the allergen determines the severity and duration of symptoms.

Symptoms of Airborne Allergies

  • Watery, Itchy eyes (the dog will paw at the eyes or shake the head constantly)
  • Extremely wet nose or clear discharge coming from the nose
  • Sneezing and wheezing
  • Diarrhea
  • Vomiting
  • Snoring caused by congestion and/or inflamed throat
  • Lack of appetite
  • Sleeping or laying around more than usual
  • Drinking more water than normal

Symptoms of Food Allergies

Soy, wheat and corn fillers are the most common culprits of food allergies in dogs. However, dogs can also suffer allergic reactions to meat and dairy products. Symptoms presented by dogs with a food allergy include:

  • Itchy skin, especially around the face, ears, armpits and anal area
  • Hair loss/”hot” spots due to excessive biting and scratching
  • Recurring ear infections
  • Increased bowel movements or diarrhea
  • Difficulty breathing due to airway swelling
  • Decreased appetite and weight loss

Reverse Sneezing and Dog Allergies

Reverse sneezing occurs when dogs forcefully expel air through their nose and then do the exact same thing in reverse by inhaling the sneeze back into their nose immediately after sneezing.

Dogs experiencing reverse sneezing fits will snort, wheeze and sound like they are having trouble breathing. However, a fit of reverse sneezing eventually resolves itself in about 30 to 60 seconds and has no negative health effects on the dog. Veterinarians call reverse sneezing “paroxysmal respiration” and attribute this type of sneezing to allergies and respiratory infections. Dogs with long, narrow noses and narrow nasal passages (collies, Afghan hounds, German Shepherds) tend to suffer reverse sneezing fits more than dogs with shorter noses.

Diagnosing Food, Parasitic and Airborne Allergies

Confirming a case of a respiratory allergy is done by a veterinarian performing one of two tests: the enzyme linked immunosorbent assay (ELISA) test or the RAST (radioallergosorbent) test. Both tests detect allergen-specific antibodies in the blood if the dog is allergic to something but the ELISA test provides more accurate details about specific antibodies in the dog’s bloodstream.

Intradermal tests may also be indicated if the dog is having allergic reactions but the exact cause of the allergy is not know. A patch is applied to the dog’s skin and the veterinarian will then inject possible allergens into the dog’s blood until the patch reacts to one or more of the injections.

Treating Canine Allergies

Humans and dogs need sufficient amounts of “good” bacteria in their gastrointestinal tracts to properly digest and release food nutrients into the body. Illness, dietary changes, stress, medications and systemic disorders can upset the balance of “good” bacteria and “bad” bacteria in the intestines, creating a wide variety of chronic health problems for dogs–including allergies.

Probiotics are bacteria living in the canine gastrointestinal tract that maintain healthy digestion and facilitate the production of vitamins and minerals from food. Probiotics also promote production of lactic acid, a chemical that helps increase intestinal acidity. Many disease-causing bacteria cannot exist in GI tracts with high acidity levels.

When you use probiotics, a dog’s allergy symptoms diminish or disappear altogether as levels of “good” bacteria rise rapidly in the GI tract. Probiotics not only have positive effects on the dog’s overall health but also directly promotes optimal functioning of the immune system to suppress its over-reactivity to allergens. Unlike antihistamines and cortisone injections, probiotics do not cause side effects because they do not contain anything but naturally occurring bacteria that gently and safely restores your dog’s health and stops allergy symptoms from reducing the dog’s quality of life.

Section #4 Summary

Allergies in dogs can manifest in various ways, from respiratory issues to skin problems and digestive upset. These reactions are triggered by the immune system's overresponse to allergens, such as pollen, food, or parasites. Probiotics, which promote a healthy gut microbiome, can be a valuable tool in managing allergy symptoms and improving your dog's overall health.

6. Dog Probiotics for Yeast

Skin yeast infections in dogs are one of the most common types of infections treated by veterinarians every year. Did you know:

  • Many dog breeds are prone to skin yeast infections and require preventive care to avoid suffering recurring infections?
  • Causes of yeast infections range from stress and humidity to flea and tick bites?
  • Ear infections are yeast infections that can permanently damage a dog’s hearing?
  • Side effects of corticosteroids routinely given to dogs with yeast infections include breathing problems, fluid retention, hair loss and behavioral changes.
  • Using dog probiotics for yeast infection is a safe and effective treatment that has no side effects.

What Causes Dog Yeast Infections?

Canine yeast infections are produced by colonizing fungal microorganisms that emerge from an imbalance of “good” bacteria and “bad” bacteria. In dogs, yeast skin infections begin when the Malassezia pachydermatis fungus outnumbers beneficial bacteria and produce symptoms of otitis (ear infection), seborrheic dermatitis (skin infection), or both. Yeast pathogens thrive in moist, warm, dark conditions such as those found in the ears, armpits and between the toes. If an affected dog does not receive effective medication like probiotics for dog’s yeast infection, sites will enlarge, spread and infect other parts of the dog’s body quite rapidly.

Canine yeast infections commonly target the dog’s ears, between their toes or under their armpits where hair is less thick and moisture remains. Dog with deep folds and wrinkles in their skin (bloodhounds, Shar-Pei’s. basset hounds and cocker spaniels) are also vulnerable to developing itchy, painful yeast infections. Unless a reliable, quick-acting treatment such as beneficial bacteria is administered, the infection will spread, become intensely irritating to the dog and causing them to scratch and chew frantically at the yeast infection.

Possible triggers of a yeast infection include:

  • Use of antibiotics
  • Prolonged exposure to humid, hot temperatures
  • Allergic reactions to ticks, fleas and other parasites
  • Food allergies (especially to corn, wheat and “fillers” found in generic brand dog foods)
  • Nutritional deficiencies (lack of sufficient proteins, omega-6 and omega-3 fatty acids will result in poor skin health)
  • Prolonged administration of corticosteroids that suppress immune system functioning
  • Endocrine/hormone/blood disorders (Addison’s Disease, Cushing’s Disease, hyper-/hypothyroidism and diabetes)
  • Chemotherapy
  • Antibiotics
  • Metabolic diseases and disorders

Yeast cells normally live on dog skin without causing health problems. Veterinarians aren’t sure exactly why yeast begins reproducing and budding uncontrollably but suspect these triggers play an important role in the development of canine yeast infections.

Symptoms of Yeast Infections

  • Constant chewing, biting, scratching and licking at the skin. Scratching bouts can be frantic and lead to inflamed skin and bleeding. Dogs with a severe yeast infection may continue biting and scratching even when the area is hairless, raw and oozing blood.
  • Dandruff and/or scaly skin
  • Excessively oily skin or a greasy-feeling coat
  • Skin that smells foul and infected
  • Lichenification of the skin (thickened, hyperpigmented skin resembling elephant skin results from untreated, chronic yeast infections)
  • Crusty, swelled patches of skin
  • Appetite/weight loss
  • Depression, lethargy, anxiety
  • Acting skittish or aggressive when approached

When internal or external stressors overstimulate a dog’s hair follicles, skin oil production increases significantly and exacerbate yeast infections. Bathing dogs too frequently or using incorrectly formulated shampoos can irritate hair follicles. Dogs suffering psychological problems, especially nervousness and anxiety stemming from a change in owners or residence, may also contribute to the development of a yeast infection.

Ear Infections in Dogs

Canine ear infections are yeast infections that require immediate treatment. Signs of a possible ear infection in dogs include:

  • Excessive scratching or pawing of the infected ear. The dog may also rub the ear against the ground or wipe it on the side of furniture
  • Yellow, brown or bloody discharge that has a strong, foul odor seeping from the ear
  • Redness, crustiness and swelling of the ear
  • Head tilting and shaking
  • Loss of balance (the dog may also walk in a circle or appear disoriented)
  • Hearing loss

Dogs with floppy ears (cocker spaniels, poodles and Labrador retrievers) or hairy, inner ear canals (schnauzers) are susceptible to suffering chronic ear infections. Once yeast cells take over in the moist, dark areas of a dog’s ears, the ensuing ear infection continues spreading into the inner ear and eventually causes fluid build-up behind the eardrum. Unless treated, the eardrum can burst from fluid pressure and irreparably impair the dog’s hearing.

Diagnosis

Veterinarians examine a skin sample under a microscope for evidence of yeast cells, bacteria, mites or anything else that may be causing the skin or ear infection. A direct impression of the infection can also be taken by simply pressing a microscope slide or piece of acetate tape onto the sore. A vet will also take seepage and wax samples from dogs with ear infections. When veterinarians suspect food allergies are causing a yeast infection, they will order food allergy trials to determine which foods are disrupting the dog’s immune system.

Treatment

Consisting of beneficial living microorganisms that live in the gastrointestinal tract of dogs (and humans), probiotics play an essential role in keeping dogs in excellent health and preventing yeast infections from developing on the skin and ears. The “good” bacteria in probiotics colonize, overwhelm and eliminate “bad” bacteria existing in the dog’s gastrointestinal tract by producing SCFAs (short-chain fatty acids). SCFAs stop the growth of harmful pathogens, such as clostridium perfringens, E. coli and Malassezia pachydermatis, the most common cause of canine yeast infection.

Using probiotics for yeast infections also means dogs do not need to suffer the undesirable side effects caused by prescription medications. In addition, probiotics not only treat and eliminate yeast infections but can also help prevent fungal skin and ear infections by significantly improving and maintaining the general health and well-being of dogs who take probiotics regularly.

Section #5 Summary

Yeast infections are a common problem for dogs, causing discomfort and potentially serious health issues. These infections can affect the skin and ears, often triggered by factors like antibiotics, allergies, or hormonal imbalances. Probiotics offer a natural and safe treatment option by promoting a healthy gut microbiome and boosting the immune system to fight off the infection.

7. Dog Probiotics for Diarrhea

Even the healthiest dogs will experience diarrhea at some point in their lives. With a gastrointestinal system similar to humans, dogs experience many of the same kind of health problems humans do, from stomach aches and flatulence to nausea and, unfortunately, diarrhea. While some incidences of diarrhea in dogs clear up on their own within a day or two, other cases will require additional treatment, such as probiotics for dogs and puppies with diarrhea symptoms, a safe and natural way to restore intestinal health, prevent dehydration and improve overall well-being of dogs.

Some things to keep in mind when treating dogs with diarrhea include:

  • Onset of diarrhea–was it sudden or gradual?
  • Has diarrhea persisted for several days?
  • Has there been a change in diet for the dog? More wet food, too many table scraps?
  • Has the dog been given veterinary-prescribed medication for the diarrhea and continues to suffer from loose stools?
  • Have you considered using probiotics for dogs with diarrhea?

What Causes Diarrhea in Dogs?

  • Dietary changes, such as switching to another brand of dog food, overfeeding, underfeeding and giving the dog too much “people” food or canned food.
  • Ingesting spoiled food, outside debris, toxic substances or foreign objects
  • Viral, fungal or bacterial infections (rotavirus or leptospirosis)
  • Food allergies to fillers and by-products found in some commercial dog food
  • Parasitic infestations of the intestines (roundworms, tapeworms, giardia or coccidia)
  • Inflammatory bowel disease (IBD) caused by a constant and excessive influx of white blood cells entering the colon and/or intestines.
  • Liver or kidney disease
  • Digestive tract tumors (malignant or benign)
  • Inflammation of the colon (colitis), an often chronic condition produced when the colon is irritated by parasites, infections, stress, IBD or ingestion of contaminated food.
  • Canine hemorrhagic gastroenteritis (CHGE), a serious illness characterized by bloody diarrhea and vomiting.

Symptoms Accompanying Diarrhea in Dogs

Dogs that have only one or two loose stools generally do not exhibit other symptoms. When dogs experience diarrhea for more than two days, the risk of dehydration dramatically increases. Although a dog with diarrhea may continue to drink water, the amount of fluids lost is greater than the fluid taken in. Signs of dehydration and other complications resulting from untreated diarrhea include:

  • Lack of energy, lethargy
  • Fast breathing and/or excessive panting
  • Rapid weight loss
  • Attitude changes (more apprehensive, passive or skittish)
  • Dry nose, gums and mouth
  • Loss of skin hydration and elasticity (pinching a small piece of the dog’s skin between your forefinger and thumb and then releasing the skin should show the skin immediately resuming a normal shape. If the dog’s skin moves too slowly or doesn’t move at all, the dog may be seriously dehydrated).
  • Has a rectal temperature greater than 105° F
  • Unsteady gait or inability to rise from a prone position

Diagnosing Dog Diarrhea

Veterinarians diagnose the cause of dog diarrhea by:

  • Gathering information from the dog’s owner about the dog’s diet, living environment, daily routine and past health history.
  • Performing a complete physical exam on the dog
  • Testing fecal samples brought in by the dog’s owner. Fecal smears and fecal flotations provide evidence of parasites, parasitical eggs and bacterial/viral infections
  • Blood and urine samples may be taken from the dog if fecal sampling results are inconclusive. Complete blood counts can detect evidence of illnesses not detectable in fecal smears, such as pancreatitis, Addison’s disease, liver/kidney abnormalities and vitamin/mineral deficiencies.
  • Abdominal X-rays and ultrasonographies can reveal intestinal obstructions and other foreign bodies that may be causing chronic diarrhea.

Treating Diarrhea in Dogs

With the emergence of serious clinical research over the past decade into the natural, restorative effectiveness of probiotics, dog owners have found that probiotics also provide a safe, healthy alternative to fasting or antibiotics for treating dog diarrhea.

A type of natural, living bacteria that supplement the beneficial bacteria within your dog’s system, probiotics are ingested orally and begin colonizing in a dog’s intestinal tract within minutes of ingestion. As they colonize, they start readjusting the bacterial imbalance in the intestines that causes dogs to have diarrhea while reducing bacteria motility and increasing the amount of “good” bacteria for rapid relief from diarrhea.

Supplementing a dog’s diet with probiotics can reduce the likelihood that the dog suffers diarrhea due to stress, chewing on outside debris or having an older, less vital immune system.

Section #6 Summary

Diarrhea is a common issue in dogs and can be caused by a variety of factors, such as changes in diet, infections, or chronic diseases. While some cases may resolve on their own, persistent diarrhea can lead to dehydration and requires attention. Probiotics can be an effective treatment option for diarrhea, as they help restore the balance of beneficial bacteria in the gut, promote healthy digestion, and reduce the risk of dehydration.

8. Human Probiotics for Dogs

One of the most common questions about dog probiotics is — can I give my dog human probiotics?

The answer is that you can.

If you ask yourself, should I give my dog human probiotics? The answer to this question is no.

Human probiotic supplements are not harmful to your pet but they’re not beneficial either. This is because your dog needs probiotics specific to them.

The digestive tract is the largest organ that your dog has. You want to make sure that your pet is benefiting the most from their probiotic supplement. The bacteria in these supplements help your canine. There are specific strains of bacteria that you should look for in a dog probiotic to help your pet and include:

  • Lactobacillus plantarum
  • Enterococcus faecium
  • Bacillus coagulans

The bacterial strain Enterococcus faecium is beneficial to pets. A study conducted showed an improvement in gut flora. An increase in levels of an antibody created in their intestinal lining also occurred. This antibody defends them from bacteria and viruses. It’s called fecal secretory IgA.

Bacillus coagulans is another strain of bacteria that is beneficial to canines. This strain can help protect dogs from different types of diarrhea. It also minimizes common digestive issues such as irritable bowel syndrome (IBS) etc.

Section #7 Summary

Human probiotics may not harm your dog, but they won't provide the same benefits as probiotics formulated specifically for canines. Dogs require certain bacteria strains, such as, Lactobacillus plantarum, Enterococcus faecium, or Bacillus coagulans, to maintain a healthy gut microbiome and overall well-being. Choosing canine-specific probiotics ensures that your dog receives the most effective support for their digestive and immune health.