Microbiome Labs Fidospore - Dog Probiotics for Digestive Health & Immune Support - Spore-Forming Pet Probiotics for Dogs & Cats Gut Health - Flavored with Grass Fed Beef Liver (30 Capsules) Review

Our scorecard

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

["Fidospore from Microbiome Labs is built around three spore forming strains, Bacillus subtilis HU58, Bacillus licheniformis SL-307, and Pediococcus acidilactici, flavored with grass fed beef liver. The brand markets it for gut health in both dogs and cats, and it's labeled specifically for digestive health and immune support.", 'At 30 capsules per bottle and 1.44 ounces, this is sized as roughly a month long supply rather than a bulk purchase, which fits its positioning as a specialty formula from a microbiome focused brand rather than a mass market probiotic line.', 'Priced at $50.00, this sits toward the higher end for a 30 count bottle, and with 91 reviews averaging 4.5 stars and about 100 bought in the past month, it has a much smaller track record than the bigger national brands, though the rating itself is strong.']

Specifications

Form

Capsule

Flavor

Beef

Benefits

Gut Health For Dogs & Cats

Best for

Argentyn 23 Professional Silver First Aid Gel - 2 Fl Oz

Weight

1.44 Ounces

Performance notes

This formula uses spore forming bacterial strains, Bacillus subtilis HU58 and Bacillus licheniformis SL-307, alongside Pediococcus acidilactici, a combination associated with the microbiome specialty supplement space rather than typical mass market pet probiotics. The capsule format keeps dosing consistent, and the beef liver flavoring is meant to make it easier to give directly or hidden in food.

What buyers say

With 91 reviews averaging 4.5 stars and roughly 100 units bought in the past month, this is a smaller sample size than most other probiotics in this category, but the consistently high rating suggests satisfied buyers among those who've tried it.