Probiotics for Dogs- An In-depth Look

Probiotics for Dogs- An In-depth Look
The health and well-being of our canine companions are of utmost importance to dog owners and veterinary professionals alike. One emerging area of interest in canine health and nutrition is the role of probiotics. These beneficial microorganisms have gained significant attention in both human and veterinary medicine. 

Let’s delve deep into probiotics for dogs, so that we can learn whether or not these products are actually useful for our canine companions.

What are Probiotics?

Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. In simpler terms, they are 'good' bacteria and yeasts that benefit the body, primarily by improving the balance and function of the gut microbiota. 

The gut microbiota, also known as gut flora, is the community of microorganisms living in our intestines. This ecosystem plays an essential role in digestion, the immune system, and overall health.

History of Probiotics in Canine Care

While the concept of beneficial bacteria has been known since ancient times (fermented foods being a prime example), the term "probiotic" was coined only in the 20th century. In the realm of veterinary medicine, the interest in probiotics for pets, especially dogs, began to gain traction in the late 20th and early 21st centuries.

Originally, many of the early understandings of canine probiotics were extrapolated from human research. However, as more specific research on dogs emerged, it became clear that dogs have unique gastrointestinal (GI) environments and specific strains of beneficial bacteria.

Today, many dog foods and supplements are fortified with probiotics, and there's an array of probiotic supplements specifically formulated for canine consumption available in the market.

Do Probiotics Work for Dogs?

The effectiveness of probiotics in dogs, like in humans, largely depends on several factors:

  • Strain specificity: Not all probiotics are the same. Different strains have different effects, and some may be more beneficial for certain conditions than others.
  • Dosage: The amount of probiotic given matters. There's a threshold below which the probiotic might not be effective.
  • Quality: Not all probiotic supplements maintain the viability of the bacteria throughout their shelf life. Ensuring a quality product is crucial.

Many clinical studies have shown that certain strains of probiotics can help dogs with various gastrointestinal problems, including diarrhoea, and can also enhance the immune response. However, more extensive research is needed to pinpoint the best strains for specific conditions.

Benefits of Probiotics for Dogs

Improved Digestion

Much like in humans, one of the most well-known benefits of probiotics is their ability to enhance digestive health. Probiotics aid in breaking down food and absorbing nutrients, ensuring smooth digestion. They also help maintain a balanced gut environment by competing with harmful bacteria, which can prevent or treat issues like diarrhoea, constipation, and gas.

Enhanced Immune Function

Roughly 70% of a dog's immune system resides in the gut. Probiotics help fortify this system by producing substances that inhibit harmful bacteria, promoting the production of natural antibodies, and boosting immune cells like the T-lymphocytes and natural killer cells.

Better Skin Health

Probiotics may also play a role in combating allergic reactions that manifest on the skin. By modulating the immune response, probiotics can help reduce the inflammatory responses that lead to itching, rashes, or other skin issues in dogs.

Reduction in Disease Risk

Preliminary research suggests that a healthy gut microbiome, bolstered by probiotics, may reduce the risk of certain diseases, including inflammatory bowel disease, obesity, and even certain types of cancers.

Drawbacks of Probiotics

Potential for Overuse

Just because a little is good doesn't mean more is better. Overuse can potentially lead to an imbalance in gut flora.

Interactions with Medications

Probiotics can interact with certain medications (most notably antibiotics), reducing their efficacy. Always consult with your veterinarian before starting your dog on any supplements like probiotics, especially if they regularly take medications. 


Quality probiotic supplements can be expensive. As more products enter the market, costs may come down, but dog owners must be careful to only use high-quality probiotic supplements. If the price sounds too good to be true, it probably is. 

Can Dogs Take Human Probiotics?

In general, giving dogs human probiotic supplements isn’t recommended. Because the gut flora of dogs is different from that of humans, the strains of beneficial bacteria for humans may not be the same as for dogs. Additionally, the concentration and dosage of probiotic supplements for humans might not be appropriate for all dogs, especially smaller breeds. 

In almost all cases, it’s better to choose a reputable dog-specific probiotic supplement brand, rather than trying to give your dog human probiotics. 

Situations When Probiotics May Be Useful for Dogs

  • After Antibiotic Treatment: Antibiotics can disrupt the natural balance of gut flora. Probiotics can help restore this balance. This can be especially important if a dog has undergone surgery involving the stomach or digestive tract. There does need to be a delay between doses, to allow the antibiotics to take effect – your vet will give you an appropriate schedule for your dog’s specific needs. 

  • Gastrointestinal Upsets: Conditions like diarrhoea or constipation may benefit from probiotic supplements.

  • During Stressful Times: Situations like moving, travelling, changes in the household, or experiences during pregnancy can stress dogs, leading to GI upsets. Probiotics may help in such cases.

  • Older Dogs: As dogs age, their digestive system's efficiency can decline. Probiotics can assist in maintaining digestive health.


Probiotics offer an exciting avenue for enhancing canine health, but as with any supplement or treatment, it's essential to consult with a veterinarian before introducing them into a dog's diet. The benefits of probiotics are promising, but they should be approached with care, and always under the supervision of a veterinary professional. These products are not a “magic bullet” that will solve all of a dog’s health issues, and must be used in addition to a healthy lifestyle, nutritious diet, and ample exercise. 

© Copyright 2023 WAGSTA

WAGSTA recommends a veterinary health check for all dogs prior to participating in any diet or exercise plan. WAGSTA Wellness diet plan is not suitable for pregnant dogs and dogs less than 12 months of age (or 18 months if a giant breed).

Terms and Conditions   Privacy Policy