Supplement
Ashwagandha
Stress and anxiety scores
Goals
Stress and relaxation guide
Explore vitamin, mineral, supplement and peptide guides. Compare what has been studied for this goal and what remains uncertain.
Explore the compounds
Explore relevance, evidence and limitations together.
Showing 5 compounds
Supplement
Rhodiola
Stress symptoms (traditional use); Stress-related fatigue (burnout)
Supplement
Saffron
Anxiety — heterogeneous, no effect on clinician scale
Peptide
Selank
Generalized anxiety disorder and neurasthenia (comparison with medazepam)
Supplement
L-Theanine
Acute stress and depressive symptoms (healthy adults) — small effect, risk of bias; Add-on to antidepressant in generalized anxiety disorder — no benefit shown
Inclusion is not a recommendation. Findings apply to the studied outcome and population; negative findings are also listed. See each peptide guide for its medicine or research status.
The full guide: what does the research say?
In this guide
At a glance
Some ashwagandha preparations show promising findings for stress, but studies are often small and products differ. Effects on anxiety are less clear. A change in a stress score does not establish treatment of an anxiety disorder. [1]
Compounds for this goal
| Evidence | Compound | Outcome studied |
|---|---|---|
| CLimited | Ashwagandha | Stress and anxiety scores |
| DInsufficient | Rhodiola | Stress symptoms (traditional use) |
| DInsufficient | Saffron | Anxiety — heterogeneous, no effect on clinician scale |
| DInsufficient | Selank | Generalized anxiety disorder and neurasthenia (comparison with medazepam) |
| DInsufficient | L-Theanine | Acute stress and depressive symptoms (healthy adults) — small effect, risk of bias |
Which distinctions matter for this goal?
Everyday stress, stress-related fatigue and diagnosed anxiety are not interchangeable. For ingredients such as L-theanine and Selank, check who participated in the study. Some ingredients overlap with the sleep goal, without necessarily having the same effects in both settings.
What does a change in a stress score mean?
Everyday stress, insomnia and a diagnosed anxiety disorder can be related, but they are not the same research question. Short-term improvement on a scale does not establish treatment of an anxiety disorder or a durable effect. NCCIH reports possible benefits of some ashwagandha preparations for stress and insomnia while describing the anxiety evidence as unclear. Small studies and varied preparations limit interpretation. [1]
Ask whether participants were otherwise healthy but stressed, had sleep difficulties, or belonged to a diagnosed group. Check the scale and follow-up period. Participant-reported improvement and an independent clinical assessment are also different pieces of evidence.
Why does one plant name not mean one product?
Ashwagandha research includes different root, leaf and combined extracts. The species name may be identical while the studied preparation differs. A result with one extract should not be transferred to every commercial product. For L-theanine, rhodiola and saffron, likewise check the linked guide for the preparation and population. [1]
Using several products together also makes it harder to identify an effect or an adverse reaction. A trial of one ingredient does not mean combinations with other sedating products have been evaluated.
Read safety alongside efficacy
NCCIH notes insufficient long-term safety information for ashwagandha, rare reports of liver injury, and possible interactions involving thyroid, immune-system and sedating medicines. It advises against use during pregnancy or breastfeeding. A botanical origin does not remove those limitations. [1]
The Selank card explains the limitations of small, non-placebo-controlled anxiety studies; it is not an established option for everyday stress. Persistent anxiety affecting daily function should not be managed by substituting a supplement list for assessment and treatment. The purpose here is to determine whether a study addresses your question before comparing products.
Why is a favorable average not definitive treatment evidence?
A 2022 meta-analysis included 12 studies and 1,002 participants. Stress and anxiety scales improved on average with ashwagandha, but results varied greatly between studies and evidence certainty was rated low for both outcomes. A favorable pooled effect does not establish equal effects across extracts or equivalence to standard treatment for a diagnosed anxiety disorder. [2]
Before supplements: everyday stress or an anxiety disorder?
NIMH describes psychotherapy, medication or both for generalized anxiety disorder; cognitive behavioral therapy is well researched. Sleep habits and reducing caffeine may help but do not replace treatment. Anxiety disrupting work, school or relationships is a reason to consider professional support. [3]
Healthy volunteers whose stress scores improve during a busy week are not the same population as people with months of difficult-to-control anxiety. Choosing a product solely because it is labeled calming asks the study to answer a question it did not address. The sleep guide discusses accompanying sleep concerns separately.
When does safety require a consultation?
If a symptom suggesting liver trouble, such as jaundice, develops while taking ashwagandha, stop the product and obtain medical assessment. Thyroid disease, pregnancy and medicine use require separate safety consideration. NCCIH’s liver-injury and interaction warnings are not removed by a possible short-term stress benefit. [1]
Summary: which outcome, which limitation?
| Outcome of interest | Relevant research | Interpretation limit |
|---|---|---|
| Everyday stress | Ashwagandha/L-theanine | Duration and preparation matter |
| Anxiety disorder | Diagnosis-specific treatment research | Supplement findings do not establish equivalence to standard care |
| Stress-related fatigue | Rhodiola | Traditional use is not strong clinical evidence |
| Selank claims | Small clinical studies | Do not establish a general relaxation recommendation |
Detailed compound guides
- Ashwagandha: Stress and anxiety scores.
- L-Theanine: Acute stress and depressive symptoms (healthy adults) — small effect, risk of bias; Add-on to antidepressant in generalized anxiety disorder — no benefit shown.
- Rhodiola: Stress symptoms (traditional use); Stress-related fatigue (burnout).
- Saffron: Anxiety — heterogeneous, no effect on clinician scale.
- Selank: Generalized anxiety disorder and neurasthenia (selank; small Russian study).
Frequently asked questions
Does a lower stress score mean an anxiety disorder improved?
Not necessarily. Population, scale and follow-up matter. A short-term result in healthy volunteers differs from treating a diagnosed disorder.
Does a sleep benefit imply a stress benefit?
Not automatically. Sleep and stress outcomes need separate assessment; appearing under both goals does not establish equal evidence.
Sources
Updated
This content is for information only and is not medical advice. It does not recommend doses, products or vendors. Talk to your clinician before making any health decision.