Purina Fortiflora Probiotics for Dogs Review

Written by
Sophia Martinez
Published on
February 1, 2024
Updated on
June 17, 2024

At Doggy’s Digest, our mission is to provide pet owners with thorough and reliable reviews of products that can improve their dogs' health. Today, we delve into Purina Pro Plan Veterinary Supplements FortiFlora, a highly recommended probiotic for dogs. This review aims to determine if FortiFlora lives up to its claims and provides tangible benefits for dogs experiencing digestive issues.

What is Purina Pro Plan Veterinary Supplements FortiFlora?

Purina Pro Plan Veterinary Supplements FortiFlora is a probiotic supplement designed specifically for dogs. It is formulated to support digestive health and manage issues such as diarrhea. Each packet of FortiFlora contains a guaranteed level of live microorganisms, specifically Enterococcus faecium, known for promoting beneficial intestinal microflora. The proprietary microencapsulation process ensures the stability and survival of these probiotics until they reach your dog’s intestinal tract​.

Key Ingredients and Their Benefits

  1. Enterococcus faecium: This beneficial bacteria supports a healthy digestive system by promoting a balanced gut microbiome. It is the primary probiotic in FortiFlora and is known for its effectiveness in improving gut health​.
  2. Liver Flavor: Derived from hydrolyzed pork and poultry liver, this ingredient makes the supplement highly palatable to dogs, ensuring they readily consume it.
  3. Brewer’s Yeast: Rich in B vitamins, brewer’s yeast supports healthy gut bacteria and overall immune function. It helps maintain a balanced gut flora, which is crucial for digestive health​.
  4. Vitamins C and E: These antioxidants help support the immune system and reduce oxidative stress, contributing to overall health and well-being​.

How to Use FortiFlora

Administering FortiFlora is straightforward. The supplement comes in pre-measured powder sachets that can be easily sprinkled over your dog’s regular food. This makes it convenient for daily use, and the liver flavor ensures that most dogs find it tasty​.

Our Experience with FortiFlora

To provide a comprehensive review, we tested FortiFlora with several dogs of different breeds, ages, and sizes, all experiencing various digestive issues.

Week 1: Initial Impressions and Adaptation

During the first week, we introduced FortiFlora gradually into the dogs' diets. Each dog received the recommended dosage based on their weight.


  • The dogs readily consumed the powder when mixed with their food, showing no signs of rejection.
  • There were no immediate adverse reactions, such as vomiting or increased diarrhea, indicating good initial tolerance.

Week 2: Notable Changes

By the second week, we began to observe some positive changes in the dogs' digestive health.


  • Improved Stool Consistency: Several dogs that had loose stools showed improvement, with firmer and more consistent bowel movements.
  • Reduced Gas: Dogs prone to excessive gas showed a noticeable reduction in flatulence.
  • Increased Energy Levels: Some dogs appeared more energetic and playful, likely due to improved digestion and comfort​.

Week 4: Significant Improvements

After a month of consistent use, the benefits of FortiFlora became more pronounced.


  • Stable Digestive Health: Dogs with chronic digestive issues, such as intermittent diarrhea, showed significant improvement. Episodes of digestive distress were greatly reduced.
  • Healthier Coats: Some dogs exhibited shinier, healthier-looking coats, which is often a sign of good internal health.
  • Happier Pets: Overall, the dogs seemed happier and more comfortable. Owners reported fewer signs of discomfort and digestive distress.

Detailed Benefits of FortiFlora

  1. Enhanced Digestive Health: The primary benefit of FortiFlora is its ability to improve digestive health. The high potency of Enterococcus faecium helps maintain a balanced gut microbiome, reducing issues like diarrhea and gas​.
  2. Boosted Immune System: The inclusion of antioxidants like vitamins C and E supports the immune system, making dogs less prone to illnesses and infections​.
  3. Improved Coat and Skin Health: Better nutrient absorption and reduced internal inflammation lead to improvements in coat and skin health, as observed in some dogs​.
  4. Overall Well-Being: Many pet owners reported that their dogs seemed happier and more energetic, which can be attributed to better digestive comfort and overall health​.

Pros and Cons


  • Easy to administer with pre-measured powder sachets.
  • Highly palatable liver flavor.
  • Proven effectiveness in improving digestive health.
  • Supports immune function with added antioxidants.
  • Recommended by veterinarians.


  • Higher price point compared to some other probiotics.
  • Some dogs may not show immediate improvement, requiring longer usage for noticeable results​.

Customer Reviews

Analyzing customer reviews, we found that the majority of users are satisfied with FortiFlora. Many have reported significant improvements in their dogs' digestive health, particularly in managing diarrhea and reducing gas. Some users also noted improvements in their dogs' overall wellness and coat condition. However, a few customers mentioned that the product is expensive and did not work as quickly as they had hoped​.

Extended Analysis and Additional Information

To further elaborate on the benefits and intricacies of FortiFlora, let's delve into the specifics of its ingredients and the science behind its formulation.

The Science Behind Enterococcus faecium

Enterococcus faecium is a type of probiotic bacteria that is known for its ability to promote a healthy digestive system. This strain is particularly effective in balancing the gut microbiome, which is essential for preventing and managing digestive issues such as diarrhea and gas. The microencapsulation process used in FortiFlora protects these beneficial bacteria from being destroyed by stomach acid, ensuring they reach the intestines where they can exert their beneficial effects.

Role of Antioxidants in FortiFlora

The inclusion of antioxidants like vitamins C and E in FortiFlora not only supports the immune system but also helps reduce oxidative stress in dogs. Oxidative stress can lead to chronic inflammation and various health issues. By neutralizing free radicals, these antioxidants help maintain cellular health and overall well-being.

Brewer’s Yeast: A Nutritional Powerhouse

Brewer’s yeast is rich in B vitamins, which are crucial for maintaining a healthy metabolism and supporting the immune system. It also contains protein and other essential nutrients that contribute to the overall health of dogs. The presence of brewer’s yeast in FortiFlora helps enhance the nutritional profile of the supplement, providing additional benefits beyond digestive health.

Practical Considerations for Pet Owners

When incorporating FortiFlora into your dog's diet, it’s important to consider the practical aspects of its use:

Ease of Use: FortiFlora’s powder form makes it easy to mix with any type of dog food, whether dry or wet. This versatility ensures that it can be seamlessly integrated into your dog’s regular diet without any fuss.

Palatability: The liver flavor of FortiFlora is appealing to most dogs, making it easier for pet owners to ensure their dogs take the supplement regularly. This is especially important for picky eaters or dogs that are generally resistant to taking supplements.

Storage: The pre-measured sachets are convenient and ensure the correct dosage is given each time. It’s important to store FortiFlora in a cool, dry place to maintain the viability of the probiotics.


After a thorough review and testing period, we at Doggy’s Digest are confident in recommending Purina Pro Plan Veterinary Supplements FortiFlora. It has proven to be an effective solution for improving and maintaining canine digestive health. The high potency of Enterococcus faecium, combined with the convenience of administration and positive feedback from both veterinarians and pet owners, makes it a standout product in the market.

If your dog struggles with digestive issues or if you are looking for a way to support their overall health, FortiFlora is worth considering. As always, consult with your veterinarian before starting any new supplement to ensure it’s the right choice for your pet.

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Compare This Probiotic to Others

Compare This Probiotic to Others