Microbiome Labs

Fido Spore™️


Size: 30 Capsules | Serving Size: 1 Capsule | Servings per Container: 30


Grass Fed Beef Liver flavour probiotic for dogs and cats. Digestive Support for Dogs and Cats

FidoSpore™️ is a probiotic support formula clinically shown to promote digestive health in dogs. FidoSpore™ contains a unique blend of Bacillus subtilis HU58, Bacillus licheniformis (SL-307), and Pediococcus acidilactici mixed with irresistible defatted, grass-fed beef liver for flavor and aroma.

This product is not intended to diagnose, treat, cure, or prevent any disease.


Key Benefits and Actions

  • Supports healthy immune and digestive functions 
  • Supports healthy gut barrier function
  • Maintains gut microbial strength, diversity and healthy metabolite production
  • May help overcome occasional digestive issues, including occasional digestive upset, itching, gas and food sensitivities. 


Pet Health Studies

  • Form/Duration: FidoSpore™: 30 days
  • Study Result Summary: Spore-based probiotics support digestive health in dogs.
  • Reference: DOI: 10.3390/ani11051367

Product Information & FAQ's

At A Glance

Having a dog is not only good for the human psyche but also incredibly beneficial for the human gut microbiome. Dogs can strengthen the human gut microbiome by going out into the environment, collecting microbes in their nose and fur, and bringing them back into your home. By doing this, they can help to diversify and strengthen your gut microbiome, but don’t forget that dogs have their own gut microbiomes.

What's Inside?

Bacillus subtilis HU58 and Bacillus licheniformis (SL-307) are both spore-forming probiotics that produce digestive enzymes, support the immune system, produce short-chain fatty acids, and maintain the gut barrier. Pediococcus acidilactici is lactic acid-producing bacterium that has a wide range of benefits in dogs. It has been used to treat dogs with digestive symptoms like constipation and diarrhea, as well as dogs infected by parvovirus. FidoSpore™ also contains defatted grass-fed beef liver extract added for flavor and aroma.

Probiotics for pets have remarkable abilities to support digestive health, particularly in dogs. Probiotics work with the animal’s immune system to maintain overall function. Research highlights that probiotics like FidoSpore™ are effective, safe, and cost effective.


Cellulose, dried Pediococcus acidilactici fermentation product, de-fatted grass-fed beef liver extract, dried Bacillus Licheniformis fermentation product, methylcellulose vegetarian capsule, dried Bacillus subtilis fermentation product.

How To Use Fido Spore™️

CATS + DOGS: Add 1 capsule to your pet’s food once daily. Capsule can be opened and sprinkled onto food or consumed whole. Dosing is not dependent on weight.