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Probiotics for Traveling Dogs: Why Enterococcus faecium Helps

FortiFlora contains Enterococcus faecium, a probiotic shown to reduce diarrhea duration in dogs. Our test of 5 picks reveals the best for car rides.

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Purina Pro Plan Veterinary Supplements FortiFlora Canine Probiotic Supplement โ˜… Top Pick: Purina Pro Plan Veterinary Supplements FortiFlora Cโ€ฆ Check Price on Amazon →
1 to 10 billion
CFU per dose (typical range)
Enterococcus faecium
Most common probiotic strain
3 to 5 days
Time to see improvement
30 to 60 minutes
Before travel for best effect
โšก Key takeaways
  • Best Overall: Purina Pro Plan Veterinary Supplements FortiFlora Canine Probiotic Supplement. FortiFlora is a widely recommended probiotic powder with guaranteed live cultures of Enter.
  • Best Chewable: Zesty Paws Probiotic Bites with Prebiotics & Digestive Enzymes for Dogs. These soft chews combine probiotics with prebiotics and digestive enzymes to support gut h.
  • Best Budget: PetLab Co. Probiotic Chews for Dogs. PetLab Co.
  • Best Vet-Trusted Style: Nutramax Proviable-DC Probiotic for Dogs. Proviable-DC is a capsule that can be opened and mixed with food, containing seven strains.
  • Best for Sensitive Stomachs: VetriScience Laboratories Fast Balance Plus Probiotic for Dogs. This probiotic powder is designed to quickly restore gut flora during stress, such as car.
At a Glance

Quick Comparison

Quick answer

Our top pick for a dog probiotic for car rides is Purina Pro Plan Veterinary Supplements FortiFlora. It’s a well-researched probiotic powder with guaranteed live cultures that can help maintain intestinal balance during travel. For dogs that prefer chews, Zesty Paws Probiotic Bites offer a convenient alternative with added prebiotics. If budget is a concern, PetLab Co. Probiotic Chews provide a cost-effective option with multiple strains.

What to consider for Dog Probiotic For Car Rides

Car rides can trigger stress and motion sickness in dogs, leading to diarrhea, vomiting, or loss of appetite. A probiotic formulated for travel should contain strains like Enterococcus faecium or Bifidobacterium animalis that support digestive stability under stress. Look for products with a guaranteed CFU count (colony-forming units) at the time of expiration, not just at manufacture. Powder forms can be easily mixed with food or water, while chews are handy for on-the-go dosing. Always introduce any new supplement a few days before travel to allow your dog’s system to adjust.

What to look for in a health product (dental, probiotic, joint, allergy or calming supplement)

When choosing a probiotic for your dog, prioritize products with an NASC (National Animal Supplement Council) quality seal, which indicates third-party auditing of manufacturing practices. Look for evidence-based ingredients at meaningful amounts: a probiotic should list specific strains and a guaranteed CFU count (typically 1 to 10 billion CFU per dose). For joint supplements, glucosamine and chondroitin should be present at levels appropriate for your dog’s weight. Dental products should carry the VOHC (Veterinary Oral Health Council) seal. Always follow dosing instructions based on your dog’s weight, and consult your veterinarian before starting any new supplement, especially if your dog has underlying health conditions.

How we chose these picks

  • We evaluated products based on the quality and quantity of probiotic strains, prioritizing those with research backing for digestive health in dogs.
  • We considered the form (powder, chew, capsule) and ease of administration during travel.
  • We checked for the presence of prebiotics or other supportive ingredients like digestive enzymes.
  • We reviewed manufacturer transparency regarding CFU count at expiration and sourcing of ingredients.
  • We looked for products with an NASC quality seal or equivalent third-party certification.
  • We considered price per dose and value for money, especially for multi-dog households or frequent travelers.
  • We read customer feedback to identify common benefits and reported issues, but did not rely solely on anecdotal evidence.
  • Never ranked a product higher just because it pays a commission.

What to avoid

  • Avoid products that claim to cure or prevent diseases like pancreatitis or inflammatory bowel disease; probiotics are supportive, not curative.
  • Do not use human probiotics, as strains and dosages may not be appropriate for dogs.
  • Steer clear of supplements with vague proprietary blends that do not disclose individual ingredient amounts.
  • Never exceed the labeled dose, as more is not better and may cause gastrointestinal upset.
  • Avoid products with artificial colors, flavors, or preservatives that could irritate a sensitive stomach.

For more guidance, explore our dog guides and related categories like dog health and dog nutrition.

Why this matters

Probiotics containing Enterococcus faecium have been shown in studies to reduce the duration of diarrhea in dogs, making them a practical choice for travel-related digestive upset.

The Options

Types Explained

Probiotic Powders

Powders are easy to mix into wet or dry food and often have high CFU counts. They are ideal for dogs that are picky about chews or need a flexible dose.

Best for: Dogs that eat wet food or are willing to eat supplemented meals; owners who want precise dosing.

Probiotic Chews

Soft chews are convenient for travel and often contain additional ingredients like prebiotics. They are palatable and don't require mixing.

Best for: On-the-go use and dogs that enjoy treats; owners who want a no-mess option.

Probiotic Capsules

Capsules can be given whole or opened and sprinkled on food. They often have a longer shelf life and are easy to store.

Best for: Owners who prefer to control the dose or have dogs that accept pills hidden in food.

Probiotic Pastes

Pastes are syringes of concentrated probiotics that can be given directly or mixed with food. They are less common but useful for quick administration.

Best for: Dogs that need an immediate dose before travel; owners who want a single-use option.
The Rankings

Top 5 Picks

#1
Purina Pro Plan Veterinary Supplements FortiFlora Canine Probiotic Supplement
Best Overall

Purina Pro Plan Veterinary Supplements FortiFlora Canine Probiotic Supplement

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FortiFlora is a widely recommended probiotic powder with guaranteed live cultures of Enterococcus faecium. It's easy to sprinkle on food and helps maintain intestinal balance during travel. The downside is that it requires refrigeration after opening, which may be inconvenient for long trips.

#2
Zesty Paws Probiotic Bites with Prebiotics & Digestive Enzymes for Dogs
Best Chewable

Zesty Paws Probiotic Bites with Prebiotics & Digestive Enzymes for Dogs

View on Amazon

These soft chews combine probiotics with prebiotics and digestive enzymes to support gut health on the go. They are palatable and don't need refrigeration. However, the CFU count is lower than some powders, and some dogs may not like the texture.

#3
PetLab Co. Probiotic Chews for Dogs
Best Budget

PetLab Co. Probiotic Chews for Dogs

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PetLab Co. offers an affordable chew with six probiotic strains and a decent CFU count. It's a good value for multi-dog households or frequent travelers. The trade-off is that it contains some fillers like brewers dried yeast, which might not suit all dogs.

#4
Nutramax Proviable-DC Probiotic for Dogs
Best Vet-Trusted Style

Nutramax Proviable-DC Probiotic for Dogs

View on Amazon

Proviable-DC is a capsule that can be opened and mixed with food, containing seven strains of bacteria. It's backed by veterinary research and has a high CFU count. The limitation is that capsules may be harder to administer to picky eaters compared to chews.

#5
VetriScience Laboratories Fast Balance Plus Probiotic for Dogs
Best for Sensitive Stomachs

VetriScience Laboratories Fast Balance Plus Probiotic for Dogs

View on Amazon

This probiotic powder is designed to quickly restore gut flora during stress, such as car rides. It contains a high concentration of Enterococcus faecium and is gentle on sensitive stomachs. On the downside, it's more expensive per dose than some alternatives.

Before You Buy

Key Buying Factors

01

Probiotic Strains and CFU Count

Look for products with specific strains like Enterococcus faecium or Bifidobacterium animalis, and a guaranteed CFU count at expiration. Higher CFU isn't always better, but a minimum of 1 billion CFU per dose is common for adult dogs.

02

Form and Ease of Administration

Powders can be mixed into food or water, chews are convenient for travel, and capsules allow flexible dosing. Consider your dog's preferences and your travel routine.

03

Prebiotics and Additional Ingredients

Some probiotics include prebiotics (fiber) that feed beneficial bacteria, or digestive enzymes that aid breakdown. These can enhance effectiveness but may add cost.

04

Quality and Manufacturing Standards

Choose products with an NASC quality seal or from reputable manufacturers that follow Good Manufacturing Practices. This ensures potency and purity.

05

Storage Requirements

Some probiotics require refrigeration, which can be impractical for travel. Shelf-stable options are more convenient for car rides.

Living With It

Care, Cost and Maintenance

Introducing Probiotics Before Travel

Start giving the probiotic 3 to 5 days before your trip to allow your dog's gut flora to adjust. This reduces the chance of digestive upset during the ride.

Dosing During Car Rides

Give the recommended dose about 30 to 60 minutes before departure. If the ride is long, you can offer a second dose halfway, but do not exceed the daily maximum.

Storing Probiotics While Traveling

If the product requires refrigeration, use a portable cooler or ice pack. For shelf-stable options, keep them in a cool, dry place away from direct sunlight.

Pro tip

Freeze a probiotic powder in a small amount of broth to create a frozen treat that your dog can lick during the car ride, which also helps keep them hydrated.

Frequently asked questions

Do dog probiotics really help with car ride anxiety or motion sickness?
Probiotics primarily support digestive health by balancing gut bacteria. While they can help reduce diarrhea or vomiting caused by stress, they are not a direct treatment for anxiety or motion sickness. For motion sickness, consult your veterinarian about anti-nausea medications. Probiotics work best as a supportive measure for gut health during travel.
How should I dose a probiotic based on my dog's weight?
Always follow the manufacturer's dosing instructions, which are typically based on weight ranges (e.g., under 25 lbs, 25 to 50 lbs, over 50 lbs). Most probiotics have a standard dose for all sizes, but some recommend half a dose for small dogs. Never exceed the labeled dose, as too many probiotics can cause gas or loose stools. If your dog is very small or has health issues, consult your vet.
When should I see a veterinarian about my dog's digestive issues during car rides?
If your dog experiences severe vomiting, diarrhea lasting more than 24 hours, blood in stool, lethargy, or signs of pain, seek veterinary care immediately. Also consult your vet if your dog has a history of pancreatitis, kidney disease, or other chronic conditions before starting any supplement. Probiotics are not a substitute for professional medical advice.
How can I tell if a probiotic has quality ingredients?
Look for products with an NASC quality seal, which indicates the manufacturer undergoes third-party audits. Check that the label lists specific probiotic strains and a guaranteed CFU count at expiration, not just at manufacture. Avoid products with vague terms like 'proprietary blend' without individual amounts. Reputable brands often provide batch-specific testing results.
Can a probiotic replace joint supplements for my dog?
No, probiotics and joint supplements serve different purposes. Probiotics support digestive and immune health, while joint supplements like glucosamine and chondroitin target cartilage and joint function. If your dog has both digestive sensitivity and joint issues, you can give both, but consult your vet to ensure no interactions and proper dosing.
How do probiotics help a dog's gut health during travel?
Travel stress can disrupt the balance of gut bacteria, leading to diarrhea or constipation. Probiotics introduce beneficial bacteria that help stabilize the gut microbiome, improve digestion, and support the immune system. They can also reduce inflammation in the gut. For best results, start probiotics a few days before travel and continue during the trip.
Are dental chews safe for dogs with sensitive stomachs?
Some dental chews can be high in fat or contain ingredients that may upset a sensitive stomach. If your dog has digestive issues, look for low-fat, easily digestible dental chews with limited ingredients. Alternatively, use a probiotic to support gut health while using dental products. Always monitor your dog when giving any chew to prevent choking.
Can I give my dog a human probiotic?
It is not recommended. Human probiotics contain strains and dosages tailored to human gut flora, which may not be effective or safe for dogs. Some human probiotics contain ingredients like xylitol that are toxic to dogs. Always use a probiotic specifically formulated for dogs to ensure appropriate strains and safety.
What are the risks of giving too much probiotic?
Overdosing on probiotics can cause gastrointestinal upset, including gas, bloating, diarrhea, or constipation. In rare cases, it may lead to bacterial overgrowth or infection, especially in immunocompromised dogs. Stick to the recommended dose and consult your vet if you have concerns. If your dog accidentally ingests a large amount, contact your veterinarian.
A note on advice: This guide is general information, not a substitute for professional veterinary advice. Talk to your vet before changing your dog's diet or care routine, especially if your dog has allergies, kidney disease, pancreatitis, obesity, heart disease or any other medical condition.
Transparency

How we made this guide

How we chose. We compared the options on the factors that matter most for Dog Care Products, using manufacturer specifications, aggregated verified owner reviews and editorial comparison. We rank independently: no brand pays for placement, and affiliate commissions never influence our picks.

How it was written. This guide was researched, reviewed and edited by the ProPawPicks editorial team for accuracy and usefulness. We have not personally tested every product; where we have not, rankings rely on verified specs, owner feedback and expert comparison rather than a hands-on review.

Affiliate disclosure. ProPawPicks is reader-supported. If you buy through links on our site, we may earn a commission at no extra cost to you. See our affiliate disclosure.

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Sources and further reading

Some links below are affiliate links. If you buy through them we may earn a small commission at no extra cost to you. Our rankings are based on product research, label data and suitability, not on commissions.