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Prebiotics vs. Probiotics: How Are They Different? Do They Work for Dogs and Cats?

Reviewed by Dr. Terry White, DVM 

As pet parents, we always strive to ensure our furry friends are healthy and happy. One of the ways to support their health is through their diet, specifically by incorporating prebiotics and probiotics. Although these terms are often used interchangeably, they serve different purposes in maintaining your pet's gut health. Let’s explore the differences between prebiotics and probiotics and how they can benefit dogs and cats.


 

What are Prebiotics?

Prebiotics serve as food for beneficial colon bacteria. A diet rich in prebiotics promotes a healthy bacterial population in the colon, which helps resolve diarrhea. Fructooligosaccharides (FOS) are carbohydrates made up of fructose (fruit sugar) units attached to glucose (starch sugar) units.


Unlike regular dietary carbohydrates that are digested by small intestine bacteria, FOSs reach the large intestine undigested and are broken down there similarly to fibers. This process helps remove harmful bacteria and promote the growth of beneficial bacteria, akin to an anti-crime program in a busy city. Diets containing FOSs or other prebiotics can be helpful in managing colitis, which is the inflammation of the colon.


Benefits of Prebiotics for Dogs and Cats


Support Digestive Health

Prebiotics promote a healthy population of beneficial bacteria in the colon, aiding in digestion and resolving diarrhea.


Enhance Immune Function

By fostering good bacteria, prebiotics help strengthen the immune system.


Reduce Pathogenic Bacteria

Prebiotics like FOS help remove harmful bacteria from the large intestine, promoting a healthier gut environment.


 

What are Probiotics?

Probiotics are protected cultures of live beneficial bacteria that can colonize the patient's intestine. These bacteria need protection from stomach acid to survive until they reach the lower intestine. Once there, they establish themselves and produce by-products that nourish intestinal and local immune system cells.


While many probiotic products exist for both humans and animals, they are not regulated as drugs by the FDA. Therefore, they are only required to be safe, not necessarily effective. A recent study in 2021 found that most probiotic products do not contain the live cultures they claim to.


If you choose to add a probiotic to your pet's regimen, we recommend choosing well-established veterinary companies, especially those that have conducted studies. However, it's worth noting that probiotics are primarily designed to colonize the small intestine, so their benefit in colitis is still somewhat speculative.


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How to Incorporate Them into Your Pet's Diet


Consult Your Veterinarian

Before adding prebiotics or probiotics to your pet's diet, consult with your veterinarian to determine the best approach and appropriate products.


Choose Quality Products

Opt for high-quality pet foods or supplements that include prebiotics and probiotics. Look for reputable brands with positive reviews and transparent ingredient lists.


Monitor Your Pet’s Health

Observe your pet for any changes in digestion, behavior, or overall health after introducing prebiotics or probiotics. Adjust the diet as needed based on your veterinarian's recommendations.


 

Have Questions about the Best Supplements for Your Fur Baby?

We can help! If your beloved fur baby is expriencing diarrhea, or you are unsure of the severity, Dr. Terry White at EverPal can give expert guidance, available after regular clinic hours. We can help provide the care your fur baby needs when you need most.


Schedule a same-day virtual visit with Dr. Terry White at EverPal.


Consultations are currently available only for residents and pets living in California.



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