Microbiome Labs Fidospore Dog Probiotic 30 Capsules
- Target Species: Cat, Dog
- Product Benefits: Gut Health For Dogs & Cats
- Item Form: Capsule
- Flavor: Beef
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A three-strain spore probiotic capsule for cats and dogs, meant as a daily digestive support supplement.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B086D5T48CCategory: Pet Probiotics
Overview
A spore-forming probiotic capsule for dogs and cats combining Bacillus subtilis HU58, Bacillus licheniformis SL-307 and Pediococcus acidilactici, flavored with grass-fed beef liver and sold as a 30-capsule supply.
Made by Microbiome Labs, this is positioned for gut and immune support. Spore-based strains are shelf-stable without refrigeration, which sets them apart from many standard probiotic forms.
- 3-strain spore probiotic blend
- Grass-fed beef liver flavor
- 30 capsules per bottle
- For cats and dogs
Who it's for
Owners managing occasional digestive upset in a dog or cat, or looking for ongoing gut support. Not a substitute for veterinary treatment of an active GI illness.
Pros and cons
- Targets both cats and dogs
- Spore-forming strains survive digestion better than standard probiotics
- Beef liver flavor for palatability
- 30 capsules is a short supply for ongoing daily use
- No dosing guidance included in the listing data
Performance notes
Spore-forming Bacillus strains survive stomach acid better than many non-spore probiotics, then activate further along the gut. Pediococcus acidilactici is added alongside the two Bacillus strains for broader coverage.
Specifications
| Brand | Microbiome Labs |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.09 poundslower than 85% of 60 pet probiotics |
| Included components | |
| Unit Count | 30 |
| Included Components | Microbiome Labs FidoSpore - Dog & Cat Digestive Supplement - Bacillus Subtilis Spore Based Probiotic To Support Digestion & Gut Health - Grass Fed Beef Liver Flavored Probiotics For Dogs (30 Capsules) |
| Warranty & support | |
| Warranty Description | x |
| Other details | |
| Target Species | Cat, Dog |
| Product Benefits | Gut Health For Dogs & Cats |
| Item Form | Capsule |
| Flavor | Beef |
| Active Ingredients | Bacillus Subtilis HU58, Bacillus Licheniformis (SL-307), Pediococcus Acidilactici |
| Number Of Items | 1 |
| Asin | B086D5T48C |
| Manufacturer | Microbiome Labs |
| Best Sellers Rank | #30,371 In Pet Supplies (See Top 100 In Pet Supplies) #155 In Dog Probiotic Supplements |
| Specific Uses For Product | Argentyn 23 Professional Silver First Aid Gel - 2 Fl Oz |
| Customer Reviews | {'ratings_count': '91', 'stars': '4.5'} |
| Upc | 787790357018 |
| Model Number | 16020357018 |
| Manufacturer Part Number | 16020357018 |
| Item Type Name | Microbiome Labs FidoSpore - Dog & Cat Digestive Supplement - Bacillus Subtilis Spore Based Probiotic To Support Digestion & Gut Health - Grass Fed Beef Liver Flavored Probiotics For Dogs (30 Capsules) |
Closest rivals on specs
PetAg Bene-Bac Plus Probiotic Pet Gel 99517-1 15 g- Item Weight 0.09 vs 0.08 pounds (+12%)
PetAg Bene-Bac Plus Probiotic Pet Gel 99518 15 g- Item Weight 0.09 vs 0.1 pounds (-10%)
Frequently asked questions
What strains are in Fidospore?
Bacillus subtilis HU58, Bacillus licheniformis SL-307 and Pediococcus acidilactici.
Can cats take this too?
Yes, the listing states it targets both cats and dogs.
How many capsules are in one bottle?
30 capsules.