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Rhodiola Rosea

Rhodiola rosea
Evidence Level
Strong
2 Clinical Trials
4 Documented Benefits
4/5 Evidence Score

Rhodiola rosea is an adaptogenic herb traditionally used in cold northern regions to combat fatigue and build resilience to physical and mental stress. Its active rosavins and salidroside are thought to help regulate the stress response and support energy, mental performance, and a balanced mood, making it popular for burnout, low energy, and demanding workloads. Unlike many adaptogens, some people notice reduced fatigue within days, though stress and mood benefits build over weeks. It is usually taken as a 200 to 600 mg standardized extract in the morning, since it can be mildly stimulating, and is often used in cycles rather than continuously.

Studied Dose 200–600 mg/day standardized extract; taken before meals
Active Compound Rosavins (≥3%) and Salidroside (≥1%) — standardized extract SHR-5

Benefits

Stress and fatigue reduction

Clinical trials consistently show rhodiola reduces mental fatigue, burnout symptoms, and stress-related exhaustion. Particularly effective for stress-induced fatigue in professionals and students.

Supported by Trial 1, Trial 2

Cognitive performance

Improves attention, processing speed, and associative thinking during stressful periods. A 20-day trial in students during exam periods showed significant improvement in mental performance and well-being.

Supported by Trial 1

Physical endurance

Enhances aerobic exercise capacity and reduces exercise-induced muscle damage. Meta-analyses show modest but consistent improvements in VO2 max and time-to-exhaustion in trained athletes.

Mood and depression support

Several RCTs show rhodiola extract comparable to sertraline for mild-to-moderate depression with significantly fewer side effects, mediated through monoamine oxidase inhibition and serotonin modulation.

Supported by Trial 2

Mechanism of action

1

HPA axis modulation

Rosavins and salidroside modulate the hypothalamic-pituitary-adrenal (HPA) axis response to stress, reducing cortisol secretion during acute stressors and supporting faster cortisol recovery post-stress.

2

Monoamine oxidase inhibition

Rhodiola constituents inhibit monoamine oxidase A and B enzymes, reducing breakdown of serotonin, dopamine, and norepinephrine in the brain, contributing to antidepressant and anxiolytic effects.

3

Mitochondrial energy production

Salidroside activates AMPK and supports mitochondrial biogenesis, increasing cellular ATP production efficiency. This explains the anti-fatigue and endurance-enhancing effects observed in clinical studies.

Clinical trials

1
Rhodiola for Stress-Related Burnout — Clinical Trial

Clinical trial of 400 mg/day rhodiola extract (SHR-5, standardized to rosavins/salidrosides) vs placebo in 118 patients with stress-related burnout for 12 weeks. (Kasper &, Neuropsychiatr Dis Treat)

118 burnout patients.

Rhodiola improved burnout, emotional exhaustion, depersonalization, cognitive function vs placebo. Generally well-tolerated. Note: Eastern European/Russian rhodiola research has decades of context; SHR-5 (Swedish Herbal Institute) is among most clinically-studied extracts.

2
Rhodiola vs Sertraline for Depression — Clinical Trial

Clinical trial comparing rhodiola extract (340 mg/day), sertraline (50 mg/day), and placebo in 57 adults with mild-to-moderate depression for 12 weeks. (Mao et al. 2015, Phytomedicine)

57 mild-to-moderate depression patients.

Both rhodiola and sertraline reduced depression scores vs placebo, with no significant difference between treatments. Smaller effect sizes than typical pharmaceutical antidepressant trials. Rhodiola had fewer side effects than sertraline. Note: small trial; clinical depression management primarily uses SSRIs/SNRIs and CBT — rhodiola at most adjunctive for mild cases.

Side effects and drug interactions

Common Potential side effects

Mild dizziness or agitation in some users, particularly at high doses
Dry mouth reported in small percentage of users
Stimulant-like effects may interfere with sleep if taken in the evening — dose in the morning

Important Drug interactions

MAO inhibitors — additive monoamine effects; avoid concurrent use
Antidepressants (SSRIs, SNRIs) — theoretical serotonin syndrome risk at high doses
Stimulant medications — may have additive CNS stimulant effects; monitor

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Frequently asked questions about Rhodiola Rosea

How much rhodiola should I take?

Studies typically use 200 to 600 mg per day of an extract standardized to about 3% rosavins and 1% salidroside. For fatigue and stress, many take 200 to 400 mg in the morning, usually before food.

When should I take rhodiola?

Take it earlier in the day, ideally in the morning on an empty stomach, because rhodiola can be mildly stimulating and may interfere with sleep if taken late. If you split the dose, keep the second one to early afternoon.

How quickly does rhodiola work?

Some people notice reduced fatigue within a few days to a week, which is faster than many adaptogens. For stress resilience and mood, give it a few weeks of consistent use. It is often used in cycles rather than indefinitely.

Does rhodiola have side effects?

It is generally well tolerated, but because it can be activating, some people feel jittery or have trouble sleeping if they take it late or at high doses. Use caution if you have bipolar disorder or take stimulants or antidepressants, and check with your doctor.

What is Rhodiola Rosea?

Rhodiola rosea is an adaptogenic herb traditionally used in cold northern regions to combat fatigue and build resilience to physical and mental stress. Its active rosavins and salidroside are thought to help regulate the stress response and support energy, mental performance, and a balanced mood, making it popular for…

What is Rhodiola Rosea used for?

Rhodiola Rosea is researched primarily for Cognitive, Athletic Performance, and Energy. Clinical trials consistently show rhodiola reduces mental fatigue, burnout symptoms, and stress-related exhaustion. Particularly effective for stress-induced fatigue in professionals and students.

What is the recommended dosage of Rhodiola Rosea?

The clinically studied dose is 200–600 mg/day standardized extract; taken before meals Always follow the product label and check with a healthcare provider for personal advice.

Is Rhodiola Rosea safe, and does it have side effects?

For most healthy adults, Rhodiola Rosea is well tolerated at studied doses. Reported effects can include: Mild dizziness or agitation in some users, particularly at high doses Dry mouth reported in small percentage of users It may also interact with some medications. Rhodiola Rosea is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Rhodiola Rosea interact with any medications?

Possible interactions include: MAO inhibitors — additive monoamine effects; avoid concurrent use Antidepressants (SSRIs, SNRIs) — theoretical serotonin syndrome risk at high doses If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Rhodiola Rosea?

NutraSmarts rates the evidence for Rhodiola Rosea as Strong (4 out of 5). It is backed by 2 clinical trials and 8 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(8 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Darbinyan V, Kteyan A, Panossian A, Gabrielian E, Wikman G, Wagner H. Rhodiola rosea in stress induced fatigue — a double blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Phytomedicine. 2000;7(5):365-71. doi: 10.1016/S0944-7113(00)80055-0.PubMedUsed to support: Double-blind crossover RCT in 56 young healthy physicians on night duty: SHR-5 Rhodiola rosea reduced overall mental fatigue (Fatigue Index) vs placebo across complex perceptive and cognitive tasks. Foundational stress/mental-fatigue trial backing the page's stress and fatigue reduction claims.
  2. Spasov AA, Wikman GK, Mandrikov VB, Mironova IA, Neumoin VV. A double-blind, placebo-controlled pilot study of the stimulating and adaptogenic effect of Rhodiola rosea SHR-5 extract on the fatigue of students caused by stress during an examination period with a repeated low-dose regimen. Phytomedicine. 2000;7(2):85-9. doi: 10.1016/S0944-7113(00)80078-1.PubMedUsed to support: 20-day double-blind RCT in foreign students during exam stress: SHR-5 Rhodiola rosea significantly improved physical fitness, mental fatigue, and neuro-motoric tests (p<0.01) with better self-assessed well-being (p<0.05) vs placebo. Directly backs the page's claim of '20-day trial in students during exam periods'.
  3. Shevtsov VA, Zholus BI, Shervarly VI, Vol'skij VB, Korovin YP, Khristich MP, Roslyakova NA, Wikman G. A randomized trial of two different doses of a SHR-5 Rhodiola rosea extract versus placebo and control of capacity for mental work. Phytomedicine. 2003;10(2-3):95-105. doi: 10.1078/094471103321659780.PubMedUsed to support: Randomized placebo-controlled trial in 161 cadets aged 19-21 under fatigue and stress: single doses of 370 or 555 mg SHR-5 Rhodiola rosea showed pronounced anti-fatigue effects, with no significant difference between doses. Backs the page's mental performance under stress claims and identifies SHR-5 as the most studied extract.
  4. De Bock K, Eijnde BO, Ramaekers M, Hespel P. Acute Rhodiola rosea intake can improve endurance exercise performance. Int J Sport Nutr Exerc Metab. 2004;14(3):298-307. doi: 10.1123/ijsnem.14.3.298.PubMedUsed to support: Double-blind placebo-controlled RCT (n=24 young healthy volunteers): acute Rhodiola rosea intake improved endurance exercise capacity. 4-week chronic supplementation did not show additional benefits. Supports the page's physical endurance claim of modest aerobic capacity improvement.
  5. Darbinyan V, Aslanyan G, Amroyan E, Gabrielyan E, Malmström C, Panossian A. Clinical trial of Rhodiola rosea L. extract SHR-5 in the treatment of mild to moderate depression. Nord J Psychiatry. 2007;61(5):343-8. doi: 10.1080/08039480701643290.PubMedUsed to support: 6-week randomized double-blind placebo-controlled trial in adults aged 18-70 with DSM-IV mild-to-moderate depression: both 340 mg/day and 680 mg/day SHR-5 Rhodiola rosea improved overall depression and HAMD scores vs placebo. Backs the page's mood/depression support claim.
  6. Olsson EM, von Schéele B, Panossian AG. A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract SHR-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue. Planta Med. 2009;75(2):105-12. doi: 10.1055/s-0028-1088346.PubMedUsed to support: Phase III RCT in 60 subjects with diagnosed fatigue syndrome (Swedish criteria): 4 tablets/day of SHR-5 Rhodiola rosea (576 mg/day) for 28 days reduced cortisol response to awakening stress, increased mental performance (concentration), and improved burnout, emotional exhaustion, and depersonalization scores. Directly matches the page's trial card on stress-related burnout.
  7. Mao JJ, Xie SX, Zee J, Soeller I, Li QS, Rockwell K, Amsterdam JD. Rhodiola rosea versus sertraline for major depressive disorder: A randomized placebo-controlled trial. Phytomedicine. 2015;22(3):394-9. doi: 10.1016/j.phymed.2015.01.010.PubMedUsed to support: First head-to-head RCT vs an SSRI: 57 patients with mild-to-moderate MDD randomized to 12 weeks of standardized Rhodiola rosea extract, sertraline, or placebo. Both active treatments reduced depression scores vs placebo with no significant difference between them; Rhodiola had fewer side effects. Smaller effect sizes than typical pharmaceutical antidepressant trials. Directly matches the page's trial card on Rhodiola vs sertraline.
  8. Cropley M, Banks AP, Boyle J. The Effects of Rhodiola rosea L. Extract on Anxiety, Stress, Cognition and Other Mood Symptoms. Phytother Res. 2015;29(12):1934-9. doi: 10.1002/ptr.5486.PubMedUsed to support: RCT in 80 mildly anxious participants: 14 days of Rhodiola rosea (Vitano®, 2×200 mg/day) significantly reduced self-reported anxiety, stress, anger, confusion, and depression and improved total mood vs no-treatment control. Backs the page's claim that Rhodiola supports stress/anxiety reduction in subclinical populations.