Bark & Whiskers Complete Probiotics for Cats and Dogs 90 g
- Target Species: Cat, Dog
- Item Form: Powder
- Dog Breed Size: Large, Medium, Small
- Active Ingredients: Bifidobacterium Lactis, Lactobacillus Acidophilus, Bifidobacterium Longum, Bifidobacterium Bifidum, Lactobacillus Casei, Lactobacillus Plantarum, Bifidobacterium Breve, Streptococcus Thermophilus, Saccharomyces Boulardii, Bifidobacterium Animalis, Enterococcus Faecium, Lactobacillus Rhamnosus, Lactobacillus Bulgaricus, Bacillus Coagulans
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A broad spectrum probiotic powder worth considering for everyday digestive support, not a substitute for veterinary care during illness.
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ASIN: B005IW1GOYCategory: Pet Probiotics
Overview
A powder probiotic blend for cats and dogs from Dr. Mercola, sold under the Bark & Whiskers line. Combines over a dozen bacterial strains plus Saccharomyces boulardii yeast, positioned for immune and digestive support. Non-GMO, soy free, and gluten free.
The strain list here is long, running from Lactobacillus and Bifidobacterium varieties through Enterococcus faecium and Bacillus coagulans, a broader mix than many single strain pet probiotics offer. The 3.17 ounce, 90 gram container is a powder meant to be mixed into food rather than given as a standalone treat.
- 3.17 oz (90g) powder
- 13+ probiotic strains plus S. boulardii yeast
- Non-GMO, soy free, gluten free
- For cats and dogs
Who it's for
Owners looking to add daily digestive and immune support to a cat or dog's regular food. Not intended as a treatment for an active digestive illness, which calls for a veterinarian rather than a supplement.
Pros and cons
- Broad blend of over a dozen strains
- Powder form mixes easily into food
- Non-GMO, soy free, gluten free
- Suitable for both cats and dogs
- Powder requires mixing into food rather than direct dosing
- Not a treatment for existing digestive illness
Performance notes
Being a powder rather than a chew or capsule, it mixes directly into wet or dry food, which sidesteps the picky eater problem some pets have with pill form supplements. The wide range of bacterial strains plus yeast is meant to cover more ground than a single strain product.
Specifications
| Brand | Bark & Whiskers |
|---|---|
| Dimensions & fit | |
| Dog Breed Size | Large, Medium, Small |
| Item Weight | 0.35 poundshigher than 51% of 60 pet probiotics |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Target Species | Cat, Dog |
| Item Form | Powder |
| Active Ingredients | Bifidobacterium Lactis, Lactobacillus Acidophilus, Bifidobacterium Longum, Bifidobacterium Bifidum, Lactobacillus Casei, Lactobacillus Plantarum, Bifidobacterium Breve, Streptococcus Thermophilus, Saccharomyces Boulardii, Bifidobacterium Animalis, Enterococcus Faecium, Lactobacillus Rhamnosus, Lactobacillus Bulgaricus, Bacillus Coagulans |
| Asin | B005IW1GOY |
| Manufacturer | Dr. Mercola |
| Best Sellers Rank | #12,720 In Pet Supplies (See Top 100 In Pet Supplies) #71 In Dog Probiotic Supplements |
| Customer Reviews | {'ratings_count': '2,269', 'stars': '4.3'} |
| Upc | 813006010313 |
| Model Number | 60005 |
| Manufacturer Part Number | 813006010313 |
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Frequently asked questions
Is this a treat or a supplement to mix into food?
It is a powder supplement meant to be mixed into a cat or dog's regular food, not a standalone treat.
Can both cats and dogs take it?
Yes, the target species listed are cats and dogs.
Is it free of common allergens?
The listing states it is non-GMO, soy free, and gluten free.