The Importance of Probiotics for Your Pet's Digestive Health

The Importance of Probiotics for Your Pet's Digestive Health

Posted by Lianne McLeod D.V.M. on

The Importance of Probiotics for Your Pet's Digestive Health

Maintaining a healthy gut is crucial for the overall well-being of dogs, much like it is for humans. Probiotics, which are beneficial bacteria, play a significant role in supporting gut health and the immune system. This comprehensive guide will explore the top probiotics for canine gut health, discussing their benefits, how they work, and the best ways to incorporate them into your dog's diet.


probiotic for dog gut health

Understanding Probiotics for Dogs

Probiotics for dogs consist of live microorganisms that, when given in the right amounts, provide health advantages to the host. These beneficial bacteria support a healthy digestive system by preventing the proliferation of harmful bacteria and encouraging a balanced gut flora.

Benefits of Dog Probiotics

Below are the primary benefits of giving your dog probiotic products:

Improved Digestive Health

Probiotics help balance the gut microbiota, which is essential for optimal digestion. They aid in breaking down food, ensuring that nutrients are absorbed more efficiently. This alleviates common digestive problems such as:

  • Loose Stool: Probiotics help firm up stool and reduce instances of diarrhea.

  • Stomach Upset: They mitigate symptoms of nausea and vomiting.

  • Gas and Bloating: Probiotics reduce gas production and bloating by enhancing the digestive process.

Enhanced Immune System

A substantial part of a dog's immune system is in the gut. By promoting a healthy balance of gut bacteria, probiotics strengthen the immune response, helping the body fend off infections and illnesses. This includes:

  • Reduction in Pathogenic Bacteria: Probiotics inhibit the growth of harmful bacteria, reducing the risk of infections.

  • Immune Modulation: They help regulate immune responses, making the body more efficient in dealing with pathogens without overreacting, which is beneficial for dogs with allergies.

Reduction in Inflammatory Bowel Disease (IBD)

Dogs suffering from IBD can experience significant relief with probiotic supplementation. Probiotics reduce inflammation in the gastrointestinal (GI) tract, which can help manage and alleviate the symptoms of IBD, such as chronic diarrhea and abdominal pain.

Management of Food Allergies and Sensitivities

Probiotics strengthen the intestinal barrier and modulate immune responses, reducing the likelihood of adverse reactions to certain foods. This makes probiotics particularly beneficial for dogs with food sensitivities or allergies.

Alleviation of Stress-related Gut Issues

Stressful situations, such as traveling, changes in routine, or vet visits, can disrupt a dog's gut health, leading to digestive problems. Probiotics help maintain gut flora balance during these stressful times, preventing issues like diarrhea and loss of appetite.

Support for Aging Dogs

As dogs age, their digestive efficiency may decline, leading to various health issues. Probiotics help senior dogs maintain a healthy gut microbiota, improving digestion and nutrient absorption, which is crucial for maintaining overall health and vitality in older dogs.

Better Absorption of Nutrients

Probiotics enhance the digestive process, ensuring that dogs absorb nutrients more effectively from their food. This is particularly important for dogs on special diets or those that require additional nutritional support.

Improvement in Coat and Skin Health

A healthy gut can positively impact a dog's skin and coat condition. By enhancing nutrient absorption and reducing inflammation, probiotics can lead to a shinier coat and healthier skin, reducing issues such as dryness and itching.

what are the best probiotic strains for dogs

Key Probiotic Strains for Dogs

Several probiotic strains are particularly beneficial for dogs. These include:

Lactobacillus acidophilus: This strain is recognized for producing lactic acid, which helps prevent the growth of harmful bacteria. It supports gut health by enhancing the intestinal barrier and promoting immune function.

Bifidobacterium longum: This strain helps break down food, supports nutrient absorption, and prevents the colonization of pathogenic bacteria in the gut.

Enterococcus faecium: Known for its role in enhancing gut flora balance and reducing GI tract infections.

Bacillus coagulans: This spore-forming bacterium is highly resilient and can survive the harsh conditions of the stomach to colonize the intestines effectively.

Best Probiotic Products for Dogs

Below are some of the top probiotic products for dogs available on the market:

Zesty Paws Probiotic Bites

These are chewable tablets that contain several beneficial strains, including Lactobacillus acidophilus and Bacillus coagulans. These bites are designed to support gut health, reduce digestive discomfort, and enhance the immune system. They are also flavored, making them appealing to most dogs, including picky eaters.

Purina Pro Plan FortiFlora

Purina Pro Plan FortiFlora is a popular choice among veterinarians. It contains Enterococcus faecium and is known for its high palatability. This probiotic supplement supports a healthy gut, improves stool quality, and is especially beneficial for dogs with digestive problems.

Nutramax Proviable-DC

Nutramax Proviable-DC is a multi-strain probiotic supplement that includes Lactobacillus acidophilus and Bifidobacterium longum. It comes in capsule form and is designed to support the digestive tract, reduce loose stool, and promote overall wellness.

NaturVet Advanced Probiotics & Enzymes

NaturVet offers a probiotic and enzyme blend in powder form, making it easy to mix with your dog’s food. It contains multiple probiotic strains to support gut health and improve digestion, making it suitable for adult dogs experiencing digestive difficulties.

VetriScience Probiotic Everyday

VetriScience Probiotic Everyday comes in chews and includes a variety of probiotic strains. It supports digestive health, enhances the immune system, and benefits dogs experiencing food sensitivities or digestive issues.

dogs eating healthy probiotic foods

Factors to Consider When Choosing Probiotics for Your Dog

Choosing the best probiotic for your dog involves careful consideration of several factors, including:

Probiotic Strains: Ensure the supplement contains a specific strain known to benefit dogs, for instance, Lactobacillus acidophilus and Bifidobacterium longum.

Colony Forming Units (CFUs): CFUs indicate the number of viable probiotic microorganisms in a product. Higher CFU counts typically indicate a more potent product. Look for supplements with at least 1 billion CFUs.

Form: Probiotics are available in various forms, including chews, capsules, and powders. Choose one that is convenient for you and palatable for your dog.

Expiration Date and Shelf Life: Probiotics contain live organisms, so check the expiration date to ensure the product is still viable. Store them according to the manufacturer's instructions to maintain potency.

Quality Seal: Look for products with the National Animal Supplement Council (NASC) quality seal, indicating they meet high standards for quality and safety.

Incorporating Probiotics into Your Dog’s Diet

Below is how to effectively incorporate dog probiotics for your furry friend:

Dog Foods with Probiotics

Many commercial dog foods now include probiotics as part of their formulations. These dog foods are designed to support gut health and overall well-being.

Probiotic Supplements

Probiotic supplements can be added to your dog's food or given directly. Capsules can be opened and sprinkled on food, while powders and chewable tablets are often flavored to appeal to dogs.

Natural Sources

Some dogs can benefit from natural sources of probiotics, such as plain yogurt. However, avoid yogurt with artificial sweeteners, as they may be harmful to dogs. Always consult your veterinarian before introducing new foods to ensure they are safe for your pet.

probiotic dog health

Potential Side Effects

Some potential side effects associated with probiotics in dogs include:

Digestive Upset: Some dogs may experience increased gas production and bloating when first introduced to probiotics. This usually resolves as their digestive system adjusts. Probiotics can also cause changes in stool consistency, leading to diarrhea or, less commonly, constipation.

Allergic Reactions: Dogs with allergies may experience itching, redness, or skin irritation in response to certain probiotic strains or ingredients. Allergic reactions can also manifest as vomiting, diarrhea, or stomach upset.

Immune System Response: In rare cases, probiotics can trigger an overactive immune response, leading to symptoms such as inflammation or autoimmune-like reactions. Additionally, dogs with weakened immune systems or underlying health conditions may be more susceptible to infections related to probiotic use.

Interactions with Medications: Probiotics can interact with antibiotics, potentially reducing their effectiveness or interfering with their absorption.

Overgrowth of Harmful Bacteria: In some cases, probiotics may disrupt the balance of bacteria in the gut, leading to an overgrowth of harmful bacteria and digestive issues.

Stomach Discomfort: Some dogs may experience nausea or vomiting, particularly if the probiotics are not well-tolerated or if given on an empty stomach.

General Discomfort: Dogs may exhibit general discomfort, reduced appetite, or changes in behavior when experiencing side effects from probiotics.


Consider the following factors before introducing probiotics to your canine companion:

Consult Your Veterinarian

Before starting any probiotic regimen, consult your veterinarian to ensure it is appropriate for your dog's health status and specific needs. Your vet can guide you on the best type of probiotic, appropriate dosage, and potential interactions with other medications or conditions.

Start Slowly

Introduce probiotics gradually to your dog's diet to allow their digestive system to adjust. Begin with a lower dose than recommended and increase it slowly over a week or two. This approach helps minimize the risk of digestive upset.

Monitor Your Dog

Keep a close eye on your dog for any signs of adverse reactions, especially during the initial stages of probiotic introduction. Monitor their stool consistency, energy levels, and any changes in behavior. If you notice persistent or severe side effects, discontinue use and consult your veterinarian.

Choose High-Quality Products

Select products from reputable manufacturers that list specific strains and CFU counts. Products with the NASC Quality Seal or other quality certifications are more likely to meet high standards for safety and efficacy.

Store Properly

Follow storage instructions provided by the manufacturer to maintain the potency of the probiotics. Some probiotics require refrigeration, while others should be stored in a cool, dry place. Proper storage helps ensure that live organisms remain effective.

Avoid Probiotics with Unnecessary Additives

Check the ingredient list for potential allergens or harmful additives, such as artificial sweeteners, like xylitol, which can be toxic to dogs. Choose products with minimal, natural ingredients to reduce the risk of adverse reactions.

what can probiotics do for dogs

Special Considerations

When considering probiotics for your dog, several special considerations should be taken into account to ensure their safety and effectiveness:

Age: Puppies, adult dogs, and senior dogs tend to have different probiotic needs. Consult with your veterinarian to determine the appropriate probiotic regimen based on your dog's age and life stage.

Health Conditions: Dogs with pre-existing health conditions, such as inflammatory bowel disease (IBD), food allergies, or immune system disorders, may benefit from specific probiotic strains or formulations. Work closely with your vet to select probiotics tailored to your dog's health needs.

Immune System Status: Dogs with weakened immune systems or those undergoing immunosuppressive treatments may have different probiotic requirements. Consider consulting a veterinary specialist or holistic veterinarian for guidance in such cases.

Allergies and Sensitivities: If your dog has known allergies or sensitivities to certain ingredients, carefully review the ingredients list of probiotic blends to avoid potential allergic reactions.

Dietary Considerations: Ensure that probiotics are compatible with your dog's diet, especially if they have dietary restrictions or special dietary needs. Some probiotics may contain ingredients that are not suitable for dogs with certain dietary sensitivities.

the bottom line on probiotics for dogs

The Bottom Line

Incorporating probiotics into your dog's diet can significantly improve their gut health and overall well-being. For multi-pet households, choosing a good probiotic is essential to ensure that all pets benefit from the inclusion of beneficial microorganisms in their diet. Probiotics help manage and prevent gastrointestinal issues, enhancing your dogs' digestive health and nutrient absorption.

When selecting a probiotic, it's crucial to consider the specific needs of your pets, including their age, health conditions, and dietary requirements. A good probiotic will aid in balancing the gut flora, promoting a healthy digestive tract, and boosting the immune system. Additionally, probiotics help mitigate the effects of stressful events and reduce the incidence of digestive discomfort.

Choosing the right probiotic also involves considering factors such as specific strains, CFU counts, and the individual needs of your dog. Products like chewable tablets, capsules, or powders can be easily integrated into your dog’s food, ensuring that they receive the benefits of probiotics consistently.

Nevertheless, always consult with your veterinarian to select the most appropriate probiotic for your pets and to address any potential side effects or interactions with medications. By taking these steps, you can ensure that your dogs enjoy the full benefits of a well-balanced gut microbiome, leading to improved digestive health, enhanced immune function, and overall well-being.



  1. Haid, M. (2023, September 11). Choosing probiotics for your dog. American Kennel Club.

  2. Grześkowiak, Ł., Endo, A., Beasley, S., & Salminen, S. (2015). Microbiota and probiotics in canine and feline welfare. Anaerobe, 34, 14–23.

  3. Harvey, C. (2023, July 3). Best probiotics for dogs that will support their overall health. Evening Standard.

  4. Yang, Q., & Wu, Z. (2023). Gut Probiotics and Health of Dogs and Cats: Benefits, Applications, and Underlying Mechanisms. Microorganisms, 11(10), 2452.

  5. Lee, D., Goh, T. W., Kang, M. G., Choi, H. J., Yeo, S. Y., Yang, J., Huh, C. S., Kim, Y. Y., & Kim, Y. (2022). Perspectives and advances in probiotics and the gut microbiome in companion animals. Journal of animal science and technology, 64(2), 197–217.

  6. Cornell University College of Veterinary Medicine. (n.d.). The power of probiotics.

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Lianne McLeod, DVM, is a former writer for The Spruce Pets, contributing articles for 11 years. Before Dr. McLeod began writing about pet care, she worked several years in small animal practice. She has written extensively about the care and keeping of exotic pets and pet health care. She now researches water quality and chronic disease at the University of Saskatchewan. Lianne McLeod earned her Doctorate of Veterinary Medicine from the Western College of Veterinary Medicine at the University of Saskatchewan. She also received a Bachelor of Science degree in biology from Simon Fraser University. She continued her education and received a Ph.D. in Epidemiology from the University of Saskatchewan. Now, she splits her time between her family, research and writing about pet health for all the animal lovers out there.

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