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2.5/5 Weak evidence

Focus / nootropic evidence brief

Lion's mane

Early human cognition and mood studies exist, but direct gym focus, strength, endurance, or recovery evidence is not established.

Cognition evidence early focus / health 6 linked sources Content audit 2026-05-04

Headline Finding

Systematic reviews find early cognition/mood signals, but healthy-adult trials are mixed and not sport-performance focused.

Dose Context

Studies use different fruiting-body, mycelium, extract, and whole-powder products; standardization is a major issue.

Important Caveat

Pre-workout nootropic claims need independently replicated healthy-adult cognitive effects and clear product identity.

Source Drawer

Linked Research

6 papers and evidence links - audit 2026-05-04
  1. Systematic review Supplement systematic review
  2. Systematic review Systematic review full text
  3. Trial Young adult pilot RCT
  4. Trial Healthy adults null RCT
  5. Trial Null RCT full text
  6. Safety LiverTox safety summary

How To Read This Rating

The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.

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