Bifidobacterium adolescentis
What is Bifidobacterium adolescentis?
Bifidobacterium adolescentis is a beneficial, or “commensal,” bacterium that naturally lives in the human gastrointestinal tract, especially the colon. It belongs to the Bifidobacterium genus—a group of microbes known for their anti-inflammatory, digestive-supportive, and immune-modulating properties.
Although its name suggests it’s found in adolescents, B. adolescentis is also present in healthy adults and plays a critical role in maintaining a balanced and functional microbiome.
This microbe is commonly assessed on gut health panels like the Vibrant Wellness Gut Zoomer to evaluate the presence of beneficial bacteria and overall microbial diversity.
Why Bifidobacterium adolescentis Matters
B. adolescentis has been linked to a wide range of health benefits, including:
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Digesting complex carbohydrates and fermentable fibers
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Producing short-chain fatty acids (SCFAs) like acetate and lactate, which help nourish gut cells
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Supporting gut barrier integrity and reducing intestinal permeability ("leaky gut")
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Modulating the immune system and promoting anti-inflammatory pathways
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Reducing the overgrowth of harmful bacteria and yeast by competing for resources
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Enhancing production of B vitamins, such as folate and biotin
Because of its many beneficial effects, B. adolescentis is often seen as a marker of a healthy, fiber-rich diet and a balanced microbiome.
Final Thoughts
Bifidobacterium adolescentis is a foundational species for gut and immune health. Whether you’re trying to improve digestion, reduce inflammation, or boost resilience, nurturing this microbe can support your long-term well-being.
Monitoring its levels through advanced stool testing like the Vibrant Wellness Gut Zoomer can provide valuable insight into your gut health and help you take meaningful action toward balance.
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What does it mean if your Bifidobacterium adolescentis result is too low?
What Does It Mean If B. adolescentis is Low?
Low levels of Bifidobacterium adolescentis may indicate:
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Low dietary fiber intake, especially fermentable prebiotics
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Overuse of antibiotics or antimicrobials, which may have depleted beneficial species
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Gut dysbiosis, with reduced populations of key commensal microbes
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Chronic stress or inflammation, which can shift the microbial balance
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A microbiome that may be less resilient and more prone to inflammation, infection, or gut permeability
Common symptoms that may correlate with low B. adolescentis include:
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Bloating, irregular bowel movements, or constipation
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Fatigue or brain fog (related to gut-brain axis imbalances)
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Skin issues such as acne, eczema, or rashes
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Food sensitivities or intolerances
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Weakened immune defenses (e.g., frequent colds or infections)
How to Restore B. adolescentis Levels
The good news: B. adolescentis responds well to dietary and lifestyle support.
Here’s how to encourage its growth naturally:
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Increase prebiotic fiber: Include foods like oats, bananas, onions, garlic, leeks, legumes, and Jerusalem artichoke. These fermentable fibers feed Bifidobacteria.
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Add fermented foods: Though B. adolescentis isn’t typically found in fermented foods, consuming them helps diversify the microbiome overall.
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Consider a targeted probiotic: Look for high-quality probiotics that include Bifidobacterium adolescentis or broad-spectrum formulas that support its growth.
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Avoid unnecessary antibiotics and gut-disrupting medications: These can reduce beneficial populations.
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Reduce sugar and processed food intake: These promote the growth of competing, less beneficial microbes.
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