Rhodiola rosea
Silver· human dataAlso known as: Rhodiola, Golden root
An adaptogen with early data for fatigue, especially mental fatigue.
What it is
Rhodiola rosea is a herb classed as an adaptogen, a substance said to help the body cope with stress. It works on the stress response rather than acting as a direct stimulant like caffeine.
What the evidence shows
Fatigue, especially mental fatigue. Silver· human data Several small trials suggest it may reduce fatigue (particularly the mental, burnout-type tiredness) and perhaps lower perceived effort during exercise. The studies are small and mixed, so treat it as promising rather than established.
Who it suits
People dealing with stress-related fatigue who want to try a gentler, non-stimulant option. It is not a performance booster in the league of the well-evidenced ergogenics.
Practical notes
Studies most often use standardised extracts over a period of weeks, so any effect builds gradually. Because herbal potency varies widely between brands, standardisation and product quality matter more here than with a single defined molecule. It can occasionally be over-stimulating, so avoid taking it late in the day.
Sources
Frequently asked questions
- Does rhodiola reduce fatigue?
- Several small trials suggest it may reduce fatigue, particularly mental fatigue and burnout-type tiredness, and perhaps lower perceived effort during exercise. The studies are small and mixed, so treat it as promising rather than established.
- Is it a stimulant?
- No, it's classed as an adaptogen, working on the body's stress response rather than acting as a direct stimulant like caffeine. Any anti-fatigue effect is subtler than a stimulant hit.
- How is it usually taken?
- Studies most often use standardised extracts taken over a period of weeks. Because herbal potency varies widely, standardisation and product quality matter more here than with a single defined molecule.
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Written and reviewed by Mathew Beale, MSc Biotechnology, University of Reading.
Last reviewed: