Last verified: 41 days ago
Bifidobacterium longum BL-05
Also known as: B. longum BL-05, Bifidobacterium longum, BL-05 probiotic strain
Evidence under review. — Not yet rated
A probiotic strain with general gut health potential, but no clinical trial data was found to confirm specific benefits.
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What it does
Bifidobacterium longum BL-05 is a specific strain of a naturally occurring gut bacterium belonging to the Bifidobacterium family, which is one of the most common beneficial bacteria found in the...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose from provided studies
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Found in
What the Science Says
Bifidobacterium longum BL-05 is a specific strain of a naturally occurring gut bacterium belonging to the Bifidobacterium family, which is one of the most common beneficial bacteria found in the human digestive tract. As a probiotic, it is intended to support the balance of gut microbiota, which may in turn influence digestion and immune function. However, no clinical trial data was available in the provided research, so any specific health claims for this particular strain cannot be confirmed from the evidence reviewed.
What It Doesn't Do
Not proven to treat or cure any digestive disease. No clinical evidence it reliably reduces bloating, IBS symptoms, or improves immunity for this specific strain. Don't assume it works the same as other B. longum strains — strain-specific effects matter. No evidence it aids weight loss or mental health for this strain specifically.
Evidence-Based Benefits
Bifidobacterium longum BL-05 is a specific strain of a naturally occurring gut bacterium belonging to the Bifidobacterium family, which is one of the most common beneficial bacteria found in the human digestive tract. As a probiotic, it is intended to support the balance of gut microbiota, which may in turn influence digestion and immune function. However, no clinical trial data was available in the provided research, so any specific health claims for this particular strain cannot be confirmed from the evidence reviewed.
Weak EvidenceEffective at: No established dose from provided studies
Source: auto-research
Absorption & Bioavailability
Unknown for this specific strain based on provided data. Generally, probiotic survival through stomach acid varies widely by strain, formulation, and delivery method. Enteric-coated or refrigerated products may improve viability.
Red Flags to Watch For
- No clinical trials were found for this specific strain — benefits are largely assumed from the broader B. longum species, not BL-05 itself
- Probiotic products vary enormously in CFU count, viability, and storage requirements — many products may contain dead or degraded bacteria by the time of consumption
- The strain designation 'BL-05' is proprietary and research on it is extremely limited, making independent verification of claims difficult
- Widely used in over 1,000 registered supplement products despite minimal published clinical evidence for this specific strain
Products Containing Bifidobacterium longum BL-05
See how Bifidobacterium longum BL-05 is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-11