What is DE111 Bacillus subtilis in MicroBiome-18?
DE111® Bacillus subtilis is a spore-forming probiotic that provides 5 billion CFUs in each MicroBiome-18 capsule.
Its ability to form a protective spore distinguishes it from the non-spore-forming probiotic organisms also included in the formula.
What Is a Spore-Forming Probiotic?
A bacterial spore is a protected, inactive form that certain organisms can enter when environmental conditions are difficult. It is not the same as a fungal spore, and it should not be understood as a disease-causing structure.
For a probiotic, this protective state may help the organism tolerate:
- Storage conditions
- Changes in moisture
- Exposure to the acidic stomach environment
- Transit through the upper digestive tract
Once the organism reaches a suitable gastrointestinal environment, it may leave the spore state and become metabolically active. It may later return to a spore state as conditions change.
Why Stomach Survival Matters
A probiotic must remain viable long enough to reach the area where it is intended to act. The stomach’s acidic environment is an important part of normal digestion, but it can be challenging for some microorganisms.
The spore-forming structure of DE111® Bacillus subtilis is intended to provide greater stability during this stage. This is why it is used alongside the Lactobacillus-related and Bifidobacterium organisms in MicroBiome-18.
How Much DE111 Is in MicroBiome-18?
| Ingredient | Amount | Viable count |
|---|---|---|
| DE111® Bacillus subtilis | 21 mg | 5 billion CFUs |
The remaining 10 billion CFUs come from the 17-organism Live-Source Probiotic Complex, bringing the complete formula to 15 billion CFUs per capsule.
Does DE111 Permanently Colonize the Gut?
MicroBiome-18 should not be presented as permanently colonizing or replacing the intestinal microbiome. Many supplemental probiotic organisms appear to act temporarily while passing through the digestive tract.
During that time, they may interact with resident microorganisms, use available dietary substrates, and contribute metabolic compounds that influence the local environment.
Temporary activity can still be meaningful. Permanent establishment is not required for every probiotic effect.
Is DE111 the Only Important Part of MicroBiome-18?
No. DE111® is the formula’s most distinctive organism, but it is only one part of the product.
The broader formula includes Lactobacillus-related organisms, Bifidobacterium organisms, Lactococcus lactis, and Streptococcus thermophilus. These organisms provide microbial variety, while DE111® contributes a different stability and delivery characteristic.
Practical Takeaway
DE111® Bacillus subtilis helps distinguish MicroBiome-18 from probiotic formulas made only with conventional non-spore-forming organisms. Its main practical value within the formula is its protective spore structure and intended viability during stomach transit.
This does not make MicroBiome-18 appropriate for everyone. People who are severely ill, immunocompromised, recently hospitalized, or living with a central venous catheter should speak with a qualified healthcare professional before using probiotics.