Ingredient file // Ingredient
Dried Bacillus Subtilis Fermentation Product
Printed as “Dehydrated Bacillus Subtilis Fermentation Product” on some labels. Same ingredient.
The dried product of fermenting with Bacillus subtilis, including the culture medium.
Our read // In our catalog
In 1 of every 11 foods we track
Share of foods that list it
9%
240 of the 2,595 foods with an ingredient list on file, from 18 brands. 238 dry dog food, 1 freeze-dried dog food, 1 dog food topper.
Each square is 1% of the catalog
Where it sits on the label
Median position 34. In the top five of 0 foods, so it is usually a minor ingredient.
Above the salt
Usually listed after the salt, which caps it at roughly 1% of the recipe in 100% of foods.
Price per lb
Median of the cheapest bag price across 213 priced foods, 20% below the catalog. The price is the food's, not the ingredient's.
Who leans on it
23%
of the foods that list it are from Wellness. 18 brands use it in total.
What it is
Why it turns up in dog food
- A spore-forming probiotic that survives kibble processing and supports digestive balance.
Who uses it
Brands, best sellers and the company it keeps
Top brands, by foods that list it
Plus 8 more brands.
Amazon best sellers that list it
- #8 Diamond Naturals Skin & Coat Formula All Life Stages Salmon & Potato Formula Dry Dog Food
- #17 Taste of the Wild High Prairie Canine Recipe with Roasted Bison & Roasted Venison Dry Dog Food
- #57 Wellness Complete Health Deboned Chicken & Oatmeal Dry Dog Food
- #72 Wellness Complete Health Small Breed Turkey & Oatmeal Dry Dog Food
- #78 Zignature Original Lamb Formula with Probiotics Dry Dog Food
- #86 Taste of the Wild Ancient Prairie Canine Recipe with Roasted Bison & Roasted Venison Dry Dog Food
Rank on Amazon's dog food best seller list, checked October 2026.
Usually listed with, share of the foods that list it
- Chicken Fat 64%
- Dried Plain Beet Pulp 48%
- Peas 48%
- Flaxseed 47%
- Chicken Meal 46%
- Natural Flavor 36%
- Oatmeal 30%
- Chicken 29%
- Dried Yeast 25%
- Brown Rice 24%
- Lentils 21%
- Barley 20%
On labels as
Other names for this
Manufacturers do not all use the same wording. These all mean the same thing.