Substrate ·evidence-based
interventions / Lion's Mane / mood

Does Lion's Mane help mood? (Grade D evidence)

Explore current source-reported research for this exact question. These records are separate from the synthesis below; they do not update its grade or establish a recommendation.

For mood, Lion's Mane has no meaningful benefit in the recorded evidence (Grade D, very-low certainty), especially in adults with mood symptoms.

Exact question reviewed

Population
adults with mood symptoms
Intervention
Lion's Mane · not standardized
Comparator
not reported
Outcome
mood
Time horizon
not reported

Bottom line. For mood, Lion's Mane has no meaningful benefit in the recorded evidence (Grade D, very-low certainty), especially in adults with mood symptoms. [1 other]

Direction
null
Magnitude
Review: Hericium erinaceus (lion's mane) has been reported to have mood and anxiety benefits in small studies, but the clinical evidence is very preliminary and not from large, confirmatory trials.
Grade
D
Certainty
very_low
Clinical meaning
trivial
Who it applies to
adults with mood symptoms
Dose / form studied
not standardized
Safety
not assessed
The one limitation
Claim-specific limitation details are not available in this public record.

Reviewed not reported · Evidence last changed · Open evidence record (version 0)

Grade
D
what does the grade mean?
Certainty
very-low
what does certainty mean?

Grade D / very-low: little evidence, and what exists is unfavourable — treat claims here with strong scepticism.

Who it works for

Best-studied in adults with mood symptoms. Recorded studied dose: not standardized.

Evidence

StudyDesignRoleCite
Benefits, side effects, and uses of Hericium erinaceus as a supplement: a systematic review.peer-reviewedsupportsPMID:40959699

Why this grade

Reasoning trace

The current record stores Grade D at very-low certainty and links 1 publishable source. A claim-specific domain-by-domain grading rationale is not available in this public record, so no reason for upgrading or downgrading is inferred here.

Audit and version

Claim ID
ec_b5-lions-mood
Claim version
not reported
Governance
legacy, not verified
Clinician review
Not yet reviewed by a licensed clinician
Last evidence search
not reported
Last editorial review
not verified

Public receipt · Machine-readable claim · Methodology

Dose & form

Studied intake: not standardized.

How it stacks up for mood

Grade history

No grade changes yet. Initial grade assigned; re-reviewed on every 6 months (Grade C+). Methodology v1.

Re-review cadence: every 6 months (Grade C+) · methodology v1.

Frequently asked

How long does Lion's Mane take to work for mood?

This record does not report a studied onset time for Lion's Mane and mood. Do not assume a typical timeframe.

What dose was used in studies of Lion's Mane for mood?

The recorded studied dose for Lion's Mane and mood is not standardized. This is a source detail, not a dose recommendation.

Does Lion's Mane work for mood if I'm not deficient?

The recorded studied population is adults with mood symptoms. This field alone does not show whether deficiency or baseline status changes the effect.

Lion's Mane or the next-best alternative for mood?

See the compare block above for the head-to-head with the most-cited alternative. Grade + certainty differences matter more than any single trial.

Related

What this is — and is not

Evidence description
Review: Hericium erinaceus (lion's mane) has been reported to have mood and anxiety benefits in small studies, but the clinical evidence is very preliminary and not from large, confirmatory trials.
Substrate's interpretation
The current reviewed record assigns Grade D at very-low certainty. A domain-by-domain rationale is shown only when recorded.
Discuss with a clinician
If you're on medication or have a condition that changes the calculus, bring the interaction & population blocks above to your pharmacist or prescriber before deciding.
Individualized medical advice
Not provided here or on any Substrate surface (API, agent tool, embed) — see YMYL policy.

Cite this page

Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.

Plain-text citation
Substrate. Does Lion's Mane help mood? (Grade D). https://evidencebased.info/interventions/lions-mane/mood. Updated 2026-07-16.
BibTeX
@misc{substrate_entionslionsmanemood,
  author = {Substrate editorial},
  title  = {Does Lion's Mane help mood?},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/lions-mane/mood},
  note   = {Grade D, evidencebased.info}
}

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Current source-reported research

Membership uses admitted intervention and measured-outcome associations for this exact question. Different populations, preparations, comparators and timepoints remain separate. No pooling or update to the synthesis is asserted.