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Akk4.2

Akkermansia Research

Mostly mechanism / observationalHigh safety

3 peer-reviewed studies

What the evidence says

Mostly mechanism / observational

Most Akkermansia studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.

Most evidence is from high-quality randomised trials published 2019–2025 with a typical study size of 100 participants.

Based on 3 studies · 3 RCTs · 158 total participants

Confidence

Moderate

By outcome

Glucose & metabolicImproved insulin sensitivity and metabolic markers (proof-of-concept RCT) · 8-12 weeks · Improved insulin sensitivity · 8-12 weeks
Too few graded studies2 studies
Weight managementModest metabolic/body-composition signals · 8-12 weeks
Too few graded studies2 studies

Active research area

2 studies in the last 5 years

20192025

1RCT2019

A proof-of-concept randomized trial found pasteurized Akkermansia muciniphila improved insulin sensitivity and metabolic markers in overweight/insulin-resistant adults.

Depommier C et al. · Nat Med (2019)

Pasteurized A. muciniphila improved insulin sensitivity and metabolic markers
Reduced markers of liver dysfunction and inflammation
Proof-of-concept RCT; pasteurized form outperformed live

View source

2RCTn=58 · small study2025

A 2025 randomized trial (n=58) found no overall between-group metabolic difference; benefit appeared only in participants with low baseline A. muciniphila.

Zhang Y et al. · Cell Metab (2025)

No significant overall between-group difference (the primary comparison was null)
Metabolic benefit only in the subgroup with LOW baseline A. muciniphila
Randomized controlled trial (n=58)

View source

3RCTn=100 · medium study2024

A randomized trial found a pasteurized Akkermansia muciniphila postbiotic (HB05P) improved muscle strength.

Kang CH et al. · Nutrients (2024)

Improved leg-extensor muscle strength (peak torque)
Randomized trial (n=100)
Postbiotic (pasteurized) form

View source

View in Research Library

Akkermansia Research

Mostly mechanism / observational

Supplementation with Akkermansia muciniphila in overweight and obese human volunteers: a proof-of-concept exploratory study.

Akkermansia muciniphila supplementation in patients with overweight/obese type 2 diabetes: Efficacy depends on its baseline levels in the gut.

Pasteurized Akkermansia muciniphila HB05 (HB05P) Improves Muscle Strength and Function: A 12-Week, Randomized, Double-Blind, Placebo-Controlled Clinical Trial.