Back to database
1.5/5 Very weak evidence

Hormone-related claims evidence brief

Mucuna pruriens

Mucuna pruriens is a bean extract that naturally contains levodopa. Claims usually center on dopamine, motivation, testosterone, libido, and mood support.

Mucuna pruriens contains levodopa and has clinical research in Parkinson's disease and fertility contexts, but testosterone, motivation, and performance claims are unsupported.

Dopamine herb, high-risk claims Potential health risk focus / strength / health 6 linked sources Content audit 2026-05-16

Headline Finding

Human evidence is clinical or fertility-focused; variable levodopa content makes casual hormone or motivation claims high risk.

Dose Context

Levodopa content varies materially across products; extracts, roasted seed powders, and standardized L-DOPA products are not equivalent.

Important Caveat

Dopaminergic effects, medication interactions, psychiatric vulnerability, nausea, and label variability create a high trust risk.

Source Drawer

Linked Research

6 papers and evidence links - audit 2026-05-16
  1. Trial Parkinson's 12-month RCT
  2. Trial Parkinson's crossover RCT
  3. Review Levodopa content analysis
  4. Review NCCIH Parkinson's evidence summary
  5. Review Male infertility study
  6. Review Therapeutic review

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.

Spot An Evidence Issue?

Send the disputed claim, source link, and why it changes the practical verdict. Corrections that materially affect the claim, dose, caveat, or rating are prioritized.

Report a source or rating issue