Eleuthero

These are the amounts published trials administered — not a recommendation, and not a dose to copy. Trial participants were screened, supervised and given a characterised preparation. What is in a retail bottle is frequently not what was studied, and the amount that suits one person is not general advice.

• Studied for Fatigue and endurance

  300–1200 mg

  Not enough

  Root extract · Where stated, 0.8% eleutherosides · 4–8 weeks

  Doses across the modern trials vary by a factor of four and the preparations are not comparable. Older Soviet dosing used tinctures at volumes that cannot be translated to modern extracts.

This is general information about food, not medical advice. It cannot diagnose, treat or replace guidance from a clinician who knows your history.

None of the timings below were directly compared in a trial. They reflect how the research happened to dose, or what the pharmacology implies — which is not the same as a timing being better.

• 🌅Morning

  Not enough

  Taken in the morning by convention, following its reputation as a stimulating tonic. No timing comparison exists.

  Timing was not directly compared. This reflects convention or how the compound behaves in the body, not a trial showing this window works better.