What Are the Best Probiotics for Dogs?

What Are the Best Probiotics for Dogs?

Jul 01, 2025Jasmine Lin

What Are the Best Probiotics for Dogs?

A Comprehensive Guide Backed by Onbord

Supporting your dog’s gut health is one of the most effective ways to improve digestion, energy levels, immunity, and even skin condition. At Onbord, probiotics are a key part of their science-backed approach to canine wellbeing, particularly for senior dogs.


Why Dogs Need Probiotics

Your dog’s digestive system contains trillions of microbes. A healthy gut microbiome can:

  • Improve digestion and faecal consistency
  • Reduce bloating and wind
  • Enhance nutrient absorption
  • Strengthen immune function
  • Support skin and coat health

As dogs grow older, their digestion often becomes more sensitive. Targeted probiotics and prebiotics—like those in Onbord’s supplement—are especially beneficial for ageing pets.



The Probiotic Onbord Uses: Bacillus velezensis

A standout ingredient in Onbord’s Senior Dog Vitamins is Bacillus velezensis, a soil-based probiotic strain known for:

  • Surviving harsh stomach acid
  • Supporting regular bowel movements
  • Reducing harmful bacteria in the gut
  • Enhancing digestive enzyme activity in older dogs

This strain is carefully selected for both stability and performance, and is paired with a prebiotic to maximise its benefits.

Explore Onbord's Senior Dog Vitamins



Dog Digestive Booster


The Prebiotic Advantage: Inulin

Onbord also includes inulin, a natural prebiotic fibre. Here's why it matters:

  • Feeds beneficial gut bacteria
  • Supports healthy digestion and bowel regularity
  • Improves probiotic effectiveness

By combining inulin with Bacillus velezensis, Onbord’s formula promotes a thriving gut environment—not just by introducing good bacteria, but by helping them flourish.


What Makes a Good Probiotic for Dogs?

Onbord’s approach follows proven nutritional principles. The best dog probiotics should offer the following:

Feature Why It Matters
Scientifically supported strain Bacillus velezensis has shown benefits for gut health and stool quality
Stable formulation Spore-forming strains resist heat and stomach acid, ensuring survival to the gut
Includes a prebiotic Inulin feeds probiotics and improves their effectiveness
Clean ingredients Free from unnecessary fillers, artificial flavours, or additives
Age-specific design Formulated for the digestive needs of senior dogs

How to Use Probiotics in Your Dog’s Routine

Onbord provides its probiotic blend in simple, daily chews. Here's how to use them effectively:

  1. Introduce gradually – Let your dog adjust over several days
  2. Stay consistent – Daily use provides the best results over time
  3. Observe changes – Look for improved digestion, appetite, and coat quality
  4. Support with diet – A nutritious diet enhances the benefits of supplementation

Why Choose Onbord’s Probiotic Blend?

Compared to generic probiotic options, Onbord’s formulation:

  • Is tailored specifically for senior dogs
  • Combines gut support with brain, dog joint care, and heart health
  • Is designed in collaboration with veterinary and canine nutrition experts
  • Uses human-grade ingredients, made in the United States
  • Comes in a chew format dogs enjoy—no fuss, no pill pockets required
“Probiotics aren’t just for solving tummy troubles—they’re an everyday tool for boosting vitality, especially as dogs age,” says the Onbord team.

If you're seeking a daily probiotic that:

  • Includes a clinically supported strain (Bacillus velezensis)
  • Features a natural prebiotic (inulin)
  • Is designed for the needs of older dogs
  • Supports more than just digestion—think joints, immunity, and brain health too

Then Onbord’s Senior Dog Vitamins are among the best choices available.

Learn more or shop directly at GetOnbord.com


New Boosters. Even More Support.

Two new ways to care for your dog from the inside out. Our new Digestive Booster settles sensitive tummies and supports gut health. Our Skin & Coat Booster calms itchy skin and helps keep coats glossy.

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