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The Best Fortiflora Probiotics to Improve Your Pet’s Gut Health

The Pet Institute Review Team
Written By The Pet Institute Review Team
Last updated: Mar 8, 2025, 12:39 PM
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Fortiflora Probiotics

Your dog is a member of your family. He’s your buddy, and he never fails to make you smile. But sometimes, you can tell something is off with your furry friend. They’re not as excited about playtime, going for walks, or doing anything at all. You try everything to cheer them up: buy organic dog food, new chew toys, go for long hikes in the park. Nothing seems to help. All these are a sign that there’s something wrong with your pup’s health.

Your pup needs a healthy diet that’s rich in protein and vitamins. One of the best ways to keep your dog happy and healthy is by adding fortiflora probiotics to their diet. Fortiflora helps support the growth of good bacteria, which can help with digestive issues, immune function, and even skin conditions. However, not all fortiflora probiotics are created equal. Some have a chewy texture, while others have unique palatability. All these factors can make the buying decision much more complicated. To help find the best one, we’ve put together a list of the best fortiflora probiotics of 2025 that will help with your dog’s overall health.

View all Contents
  • Buyer's Guide to Finding the Best Fortiflora Probiotics
    • Why Should You Incorporate Fortiflora Probiotics in Your Dog’s Diet?
    • Which Ingredients to Look Out for in Fortiflora Probiotics
    • How to Choose the Most Promising Fortiflora Probiotics
  • People Also Asked
  • Your Pet’s Best Interest, Always
  • Contributors
  • Related Reads

Our Top Picks of Fortiflora Probiotic

  • Purina Fortiflora Probiotic: Best Overall (Shop Now) →
    Read more about this Fortiflora Probiotic ↓
  • PetUltimates Fortiflora Probiotic: Most Versatile (Shop Now) →
    Read more about this Fortiflora Probiotic ↓
  • Nutramax Laboratories Fortiflora Probiotic: Multi-Strain Probiotics (Shop Now) →
    Read more about this Fortiflora Probiotic ↓
  • Dr. Mercola Fortiflora Probiotic: Best Gluten Free Choice (Shop Now) →
    Read more about this Fortiflora Probiotic ↓

The Leading Fortiflora Probiotic of 2025

Purina Fortiflora Probiotic

Best Overall
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The Purina Fortiflora Probiotic is a revolutionary product for cats and kittens experiencing digestive issues. The 30-count box contains an advanced probiotic supplement that enables cats to manage their diarrhea. This product contains a proprietary microencapsulation process for enhanced stability which has been tested and recommended by veterinarians. The protection of the probiotics ensures they remain intact and healthy while passing through the cat’s digestive system. This means cats who use the product will be receiving maximum benefit.

The powdered supplement has promoted normal intestinal microflora in cats. This helps them to defend themselves against unhealthy bacteria and parasites while also assisting in efficient digestion. As a result, cats can get the most out of their diets, which leads to physical and mental health benefits.

Product Pros
  • Improves litter box “offerings”
  • Easy to mix with cat’s wet food
  • Enhances flavor of cat food
Product Cons
  • Can take up to 48 hours to take effect

PetUltimates Fortiflora Probiotic

Most Versatile
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PetUltimate fortiflora probiotics is an ultra-concentrated, feline-specific blend of 20 carefully selected probiotic strains that aids in the gut health of your furry friend. This formula also contains Lactobacillus acidophilus and Enterococcus faecium, which may help support intestinal microflora balance. It contains 5 billion CFUs, which means your dog gets a powerful dose of balanced support that’s as effective as it is delicious.

The power of twenty different kinds of probiotics in each serving will help your pet grow, thrive, and feel better. And the best part is, PetUltimates Fortiflora is easy to serve! It comes in a convenient powder that you can sprinkle right onto your pet’s food or tasty treats. Since the last thing you want to do is compromise your pet’s health, PetUltimate fortiflora doesn’t contain sugar, soy, wheat, filler, or artificial flavors. Each pack contains 120 servings, so you can keep your pet’s digestive system running smoothly for almost four months.

Product Pros
  • 20 different health-supporting bacteria
  • 120 servings per pack
  • Comes in a convenient jar
  • Easy to use
  • Do not contain harmful by-products and preservatives
Product Cons
  • It might take longer to work.

Nutramax Laboratories Fortiflora Probiotic

Multi-Strain Probiotics
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Are you looking for a probiotic that can help with your pet’s gastrointestinal health? Nutramax Proviable fortiflora is designed just to aid your pet’s sensitive stomach. It contains seven strains of beneficial bacteria that help support gastrointestinal health and bolster immunity. Formulated with billions of CFUs and live bacteria, it is also great for alleviating occasional soft stools and diarrhea. Plus, it contains two different probiotics that help with optimum health development. These supplements are best for those furry friends who feel stressed due to traveling, kenneling, or having dietary indiscretions.

The probiotics are formulated in an acid-resistant capsule, so they’ll make it through your pet’s stomach and be released in the intestines, where they can go to work promoting a healthy balance of microorganisms! With 80 capsules per pack, this is a great deal for your pets’ health needs.

Product Pros
  • Contain 7 different strains of healthy bacteria
  • Aids in promoting healthy gut
  • 80 capsules per pack
  • Billions of CFUs and two probiotics for immunity development
Product Cons
  • It might be a little more pricey than its counterparts.

Dr. Mercola Fortiflora Probiotic

Best Gluten Free Choice
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Your furry pal deserves the best, and with the right blend of natural ingredients, you can give your pet the sustenance they need to get through allergy season. Dr. Mercola Fortiflora Probiotics contain 38 billion CFU beneficial bacteria from 14 carefully selected strains, added B vitamins and lactic acid that support a healthy microbiome and promote optimal gastrointestinal development. These supplements are rich in vitamin K, folic acid and biotins that aid in healthy coat development and regulate the iron level. 

Additionally, the supplements are best for maintaining colon PH balance and eliminating intestinal inflammation. And did we mention that the exceptional formula is also beneficial for detoxification which in turn improves nutrient absorption? Best of all, it’s non-GMO, gluten-free, and soy-free, so you don’t have to worry about any extra bloating and gassiness!

Product Pros
  • Non-GMO and gluten-free supplements
  • Aids in healthy food digestion
  • Contain vitamins for optimal health development
  • Available in easy-to-use powder form
Product Cons
  • It might cause lethargy in some dogs.

Buyer's Guide to Finding the Best Fortiflora Probiotics

As a pet parent, it is important to opt for a product that contains the right amount of nutrition. Our comprehensive buying guide has everything you need to know for making an informed decision.

Why Should You Incorporate Fortiflora Probiotics in Your Dog’s Diet?

Probiotics are healthy bacteria that live in the digestive tract and help to maintain a healthy balance of organisms. Fortiflora probiotics contain nutritional building blocks such as Enterococcus Faecium, Lactobacillus casei, Lactobacillus Plantarum, and Lactobacillus acidophilus that aid in digestive health. Each daily dose contains one billion colony-forming units (CFU), which is enough to help keep your dog’s intestinal tract healthy. It decreases the risk of intestinal worms, ear infections, and skin allergies.

Fortiflora also helps with several common problems that dogs face, including diarrhea, bloating, and loose stools. Healthy bacteria can help get rid of bad bacteria that may have entered your dog’s system through contaminated food or water. In addition to all these amazing benefits, fortiflora has an antimicrobial effect that helps with oral health and eliminates bad breath. You can also use it to beef up your pet’s immune system while they are transitioning to solid foods.

Which Ingredients to Look Out for in Fortiflora Probiotics

No matter what kind of pet you have, you want the best for them. As a pet parent, it is your responsibility to make sure they are healthy and happy; that’s why you should look at the ingredients list of Fortiflora Probiotics. Some important ingredients are mentioned below.

Canola oil

It is important to buy supplements that contain canola oil. This ingredient acts as an emulsifier and helps to maintain the shelf life of the product.

Citric acid

As we all know, citric acid is rich in Vitamin C and serves as a preservative in the supplement to keep it fresh longer.

Soy peptones

Soy peptones are a highly nutritious source of amino acids. These amino acids are broken down from soybean protein by enzymatic hydrolysis. They have been added to fortiflora for providing adequate content of protein to dogs for better growth and development.

Corn gluten meal

This ingredient contains high levels of protein and enzymes. The enzymes help with digestion, and protein helps with the skin condition, coat condition, energy levels, and muscle development. Corn gluten meal does not contain any grains or gluten, which may cause allergic reactions in dogs.

Dried bacillus coagulans

This ingredient is used as an antioxidant and has anti-inflammatory properties that help with digestive health and protect the lining of the intestine. It helps to promote good bacteria in your dog’s intestines.

Dried Enterococcus Faecium

This is a strain derived from lactic acid bacteria and is the only ingredient to promote intestinal health and balance in canines. This active ingredient also helps in reducing the number of Clostridium perfringens – a bacterium that causes diarrhea and other digestive issues in dogs. This ingredient has been approved by FDA as a safe source for consumption by canines to enhance their overall well-being.

How to Choose the Most Promising Fortiflora Probiotics

If you are a concerned pet owner, then you should keep the following factors in mind before buying any probiotics for your dog.

Free from additives

Some pet foods include dyes, flavor enhancers, and preservatives such as ethoxyquin (also known as E321). These ingredients can be quite harmful to dogs with sensitive stomachs and trigger allergies. Also, look for a product that doesn’t contain meat by-products, grain, or soy.

Form

Fortiflora is available in two forms – powder and chewable tablet form. It is advised that you buy the powdered form if you have a small puppy or kitten, as they will not be able to chew the tablets. Buying probiotics in powder form would also help if you have a picky eater at hand or has a sensitive stomach. The powder can easily be mixed with water or sprinkled into any meal without causing any disturbance to your pet’s diet.

Palatability

Another important factor that you need to consider is palatability. Does the smell of it make him nauseous? How easy or difficult will it be for your dog to consume fortiflora probiotics? If your dog does not like the taste of this product, then chances are that he may not eat it at all. This is why you should always go for a product that has a good taste and smell so he can gobble it up in one go.

Strain of bacteria

Some probiotics come with 5-7 strains of bacteria, while others include 20 healthy strains of bacteria that aid in maintaining optimal intestinal health. It is best to pick a product that has billions of CFUs with different strains of bacteria so your canine can stay happy and healthy.

People Also Asked

Are there any side effects of fortiflora probiotics?

No, the fortiflora is safe for your dog. However, if your dog has a high sensitivity to any ingredients in the probiotic such as soy or corn, then you should avoid using this supplement. You should also check with your vet before giving it to your dog if she is pregnant or has any serious medical issues.

Does fortiflora probiotics help with gas?

Yes, the fortiflora is effective in relieving gas. That's because it helps restore the natural balance of good bacteria, which aids digestion and reduces flatulence.

How long can a dog stay on fortiflora probiotics?

Manufacturers often recommend that you give the supplement to your dog for at least 30 days so his body can acclimate to the new beneficial bacteria. Once this happens, you can stop giving him the supplement, and his body will continue to produce and thrive on its own healthy bacteria.

What is the cost of fortiflora probiotics?

The cost of fortiflora varies depending on which size you buy. You can get a small box for about $30 or a large box from a reputable brand for about $50.

Your Pet’s Best Interest, Always

At Pet Institute, we take pet care seriously. We're dedicated to transparency, impartiality, and the well-being of your pets in every article, review, and recommendation we provide. Our unwavering commitment to these principles ensures that you, our valued reader, always receive reliable and unbiased information. Let us be your trusted guide in the world of pet care and companionship.

Contributors

The Pet Institute Review Team
The Pet Institute Review Team
Pet Health
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