Home Ingredients Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials)
Gut HealthImmune Support

Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials)

Evidence Level
Moderate
1 Clinical Trial
6 Documented Benefits
3/5 Evidence Score

Optibiome® BS50 is a CLINICALLY-STUDIED BACILLUS SUBTILIS MB40 PROBIOTIC STRAIN developed by BIO-CAT Microbials — distinguished by SPORE-FORMING resilience providing high survivability through GI tract and SHELF STABILITY. Bacillus subtilis MB40 strain has documented immunity benefits. Distributed via partnership with Kerry. Used for: gastrointestinal health, immune support, probiotic resilience for shelf-stable products.

Studied Dose Per BIO-CAT Optibiome BS50 product specification
Active Compound Bacillus subtilis MB40 (ATCC 122264) — spore-forming probiotic strain

Benefits

Improved Immunity

Bacillus subtilis MB40 has documented effects on immunity including improved immune response against bacterial infection in animal models.

Supported by Trial 1

GI Symptom Improvement

Optibiome studied for safety and efficacy in improving gastrointestinal symptoms.

Supported by Trial 1

Spore-Forming Resilience

Bacillus species form ENDOSPORES — survive stomach acid, heat, time on shelf; deliver viable bacteria to intestine reliably.

Supported by Trial 1

Shelf Stability

Spore-forming nature allows formulation in foods, beverages, and shelf-stable products without refrigeration — major advantage over Lactobacillus and Bifidobacterium.

Reduced Capsule Overage

Stability allows manufacturers to use less strain in capsules vs other probiotics that lose viability over shelf life.

Gut Microbiome Support

Native to soil and intestinal environments; supports beneficial bacterial ecosystem.

Supported by Trial 1

Mechanism of action

1

Endospore Survival Through GI Tract

Bacillus endospores are highly resistant to stomach acid, bile, heat, dehydration; germinate to active bacteria in intestine.

2

Antimicrobial Compound Production

Bacillus subtilis produces antimicrobial peptides that compete with pathogens for gut niches.

3

Immune System Modulation

Activates innate and adaptive immunity; supports immune homeostasis.

4

Short-Chain Fatty Acid Production

Active bacterial growth produces SCFAs supporting gut barrier and gut-immune axis.

Clinical trials

1
Optibiome BS50 / B. subtilis MB40 Clinical Studies
PubMed

BIO-CAT clinical evaluation of Bacillus subtilis MB40 for GI and immune applications.

Adults across applications.

GI symptom improvement; immune support; established efficacy.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated.
Mild GI distress during initial adjustment (rare).
Allergic reactions rare.
BACTEREMIA RISK in IMMUNOCOMPROMISED — theoretical risk with all probiotics; consult.

Important Drug interactions

Antibiotics — kills probiotic; separate by 2-3 hours; resume after antibiotic course.
Immunosuppressants — caution with live probiotic in immunocompromised; consult.
Pregnancy — generally considered safe; consult.
Lactation — generally safe.
Children — appropriate at proportional doses; pediatric probiotic use generally safe.
Critically ill / immunocompromised — consult; rare cases of probiotic bacteremia.

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Frequently asked questions about Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials)

What is the recommended dosage of Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials)?

The clinically studied dose for Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) is Per BIO-CAT Optibiome BS50 product specification. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) used for?

Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) is studied for improved immunity, gi symptom improvement, spore-forming resilience. Bacillus subtilis MB40 has documented effects on immunity including improved immune response against bacterial infection in animal models.

Are there side effects from taking Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials)?

Reported potential side effects may include: Generally well-tolerated. Mild GI distress during initial adjustment (rare). Always consult a healthcare provider before starting any new supplement, especially if you have underlying conditions or take medications.

Does Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) interact with medications?

Known drug interactions may include: Antibiotics — kills probiotic; separate by 2-3 hours; resume after antibiotic course. Immunosuppressants — caution with live probiotic in immunocompromised; consult. Consult a pharmacist or healthcare provider if you take prescription medications.

Is Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) good for gut health?

Yes, Optibiome® BS50 (Bacillus subtilis MB40 — BIO-CAT Microbials) is researched for Gut Health support. Native to soil and intestinal environments; supports beneficial bacterial ecosystem.