Probiotic & Fiber · Fermented/Probiotic

Faecalibacterium prausnitzii

Provisional Moderate Scoreprobiotic

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Faecalibacterium prausnitzii is a beneficial gut bacterium that produces butyrate, a short-chain fatty acid crucial for maintaining intestinal barrier integrity and reducing inflammation. This next-generation probiotic modulates immune responses and supports colon health through direct anti-inflammatory mechanisms.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryProbiotic & Fiber

GroupFermented/Probiotic

Public Score StatusProvisional Moderate

Primary KeywordFaecalibacterium prausnitzii benefits

Faecalibacterium prausnitzii close-up macro showing natural texture and detail — rich in anti-inflammatory, short-chain fatty acid producer, immunomodulatory

Faecalibacterium prausnitzii — botanical close-up

Reported Benefits (Provisional)

Supports gut health by producing butyrate, a short-chain fatty acid essential for colon health. This helps maintain a healthy gut lining. - Reduces inflammation by modulating immune responses, decreasing the risk of inflammatory bowel diseases. - Enhances digestive efficiency by breaking down complex carbohydrates, improving nutrient absorption. - Boosts immune health by increasing the production of anti-inflammatory cytokines, which protect against infections. - Promotes mental well-being by influencing the gut-brain axis, potentially reducing anxiety and depression. - Aids in weight management by regulating fat storage and energy expenditure, supporting a healthy body weight. - Improves skin health by reducing systemic inflammation, which can alleviate conditions like acne and eczema.

Origin & History

Natural habitat

Faecalibacterium prausnitzii is a gram-positive anaerobic bacterium commonly found in the human gut microbiota. It is cultivated in specialized anaerobic conditions due to its sensitivity to oxygen. This bacterium is typically isolated from human fecal samples for research and probiotic development.

“Faecalibacterium prausnitzii was first identified in the late 20th century as a prominent member of the human gut microbiota. Its importance in gut health has been recognized more recently, leading to increased scientific interest.”Traditional Medicine

Research Narrative (Provisional)

Research on Faecalibacterium prausnitzii includes in vitro and animal studies, with emerging human trials focusing on its role in gut health and inflammation. Some studies suggest its potential in managing inflammatory bowel disease.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Produces butyrate, a key short-chain fatty acid. - Contains enzymes that help break down complex carbohydrates. - Rich in polysaccharides that support gut health.

Reported Mechanism (Provisional)

Mechanism of Action

F. prausnitzii produces butyrate through the fermentation of dietary fiber, which serves as the primary energy source for colonocytes and maintains tight junction integrity. Butyrate activates GPR43 and GPR109A receptors, triggering anti-inflammatory pathways and regulatory T-cell differentiation. The bacterium also produces other metabolites like propionate and acetate that modulate immune responses and strengthen the intestinal barrier.

Clinical Narrative (Provisional)

Clinical studies have consistently shown F. prausnitzii depletion in inflammatory bowel disease patients, with levels inversely correlating with disease severity. Small-scale intervention trials (n=20-50) demonstrate that F. prausnitzii supplementation can increase fecal butyrate levels by 40-60% within 4 weeks. Observational studies in IBD patients show 3-5 fold reductions in F. prausnitzii abundance compared to healthy controls. However, large-scale randomized controlled trials are still limited, and most evidence comes from observational and mechanistic studies.

Also Known As

Faecalibacterium prausnitziiF. prausnitziiFusobacterium prausnitziiBacteroides prausnitziiButyrate-producing bacteriumAnti-inflammatory probioticGut barrier protector

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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