Bark & Whiskers, Complete Probiotics, for Cats and Dogs, 3.17 oz (90 g), Supports Immune…
- Probiotic
- 1
- 5.6 ounces
- Powder
- More reviewed than 73%
A broad spectrum probiotic powder worth considering for everyday digestive support, not a substitute for veterinary care during illness.
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How it ranks among the 129 probiotics we track
4.3★ across 2,269 Amazon ratings, Bayesian-smoothed toward the category average.
2,269 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
600+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 129 probiotics we track - how the scorecard works · full probiotics data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
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.
Strengths and trade-offs
Drawn from this product's published specifications.
- 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 |
|---|---|
| Model | 60005 |
| Dimensions & fit | |
| Item Weight | 5.6 ounces |
| Dog Breed Size | Large, Medium, Small |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Item Form | Powder |
| Model Number | 60005 |
| Upc | 813006010313 |
| Manufacturer Part Number | 813006010313 |
| Asin | B005IW1GOY |
| Target Species | Cat, Dog |
| Manufacturer | Dr. Mercola |
| 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 |
| 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'} |
How it compares
This product against the closest alternatives we track in probiotics.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Bark & Whiskers, Complete Probiotics, for Cats and Dogs, 3.17 oz (90 g), Supports Immune…This product | 4.3 / 5 | 2,269 | 4.1 / 5 |
| Nutramax Proviable Probiotics for Dogs and CatsNutramax | 4.6 / 5 | 19,178 | 4.6 / 5 |
| Pro Plan Veterinary Diets FortiFlora Chewable Probiotic Tablets for Dogs and PuppiesPurina Pro Plan | 4.7 / 5 | 5,046 | 4.6 / 5 |
| Zesty Paws Probiotics for DogsZesty | 4.5 / 5 | 26,130 | 4.5 / 5 |
| Native Pet Pumpkin for DogsNative | 4.5 / 5 | 9,721 | 4.5 / 5 |
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Questions about the Bark 60005
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
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.