Supplement evidence

040 / 575Botanical

Asian ginseng

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The short answer

Some evidence suggests small effects on fatigue, cognition, or glucose, but findings vary.

Evidence and scope: Mixed evidence
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: It is not a validated longevity intervention.
Before deciding: Can cause insomnia and interact with warfarin, diabetes medicines, and stimulants.

01 / PRACTICAL GUIDE

Dose, absorption, and combinations

These are indication-specific reference or studied ranges—not a personalized prescription. Start with the objective, then check the form, label, medicines, and health conditions.

Reference range by objective

Alertness and focus200–400 mg/day standardized extract in many trials

Reference or studied range—not a personalized prescription. The product label or a clinician may specify a different dose.

Dose source ↗

More is not automatically better. A clinician or product label may specify a different amount.

Absorption / solubilityFormulation-dependent

Not usefully classified as a fat- or water-soluble vitamin; absorption depends on the salt, extract, delivery system, and meal.

How it is commonly taken

Often taken earlier in the day; standardization matters.

Do not combine casually

Warfarin, diabetes medicines, stimulants, insomnia, pregnancy, and autoimmune disease require caution.

Dose and use source ↗

Dose and use links lead to primary or official source material. Search links are discovery tools, not proof that every returned paper applies.

02 / EVIDENCE

What the research says

We keep supportive, mixed, negative, safety, and contextual findings together. The headline never replaces the underlying papers.

4research papers in this ledger

52unique primary studies represented

1,969unique participants represented

These are audited counts for this JIVANA collection, not search-result totals. Participants are counted once when multiple papers use the same cohort; review papers are not added again to participant totals.

Open the research timelineResearch timeline

Entries are ordered by publication year. A study period appears only when the source reports it.

2024

Mixed or qualifiedPMID 39474788 · CRD42024514231

Effects of Ginseng on Cognitive Function

Memory improved slightly, especially in high-dose subgroups, but overall cognition, attention, and executive function did not. Heterogeneous populations and products make the isolated memory signal uncertain.

Published: 2024n=671 participants15 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 15 randomized trials
Population: 671 healthy, cognitively impaired, psychiatric, hospitalized, or Alzheimer-disease participants
Intervention: Varied ginseng preparations versus control
Outcome: Memory, overall cognition, attention, and executive function

Open research record ↗

2022

Mixed or qualifiedPMID 35776997

Efficacy of ginseng supplements on disease-related fatigue

Fatigue scores showed a small pooled improvement. Different diseases, preparations, doses, and scales limit how confidently this average can guide a specific patient or product.

Published: 2022n=1,298 participants12 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 12 randomized trials
Population: 1,298 adults with disease-related fatigue
Intervention: Ginseng supplements versus control
Outcome: Validated fatigue scales

Open research record ↗

2021

Mixed or qualifiedPMID 34169686

Ginseng for Erectile Dysfunction: A Cochrane Systematic Review

Low-certainty evidence found only a trivial erectile-function effect, although self-reported intercourse ability improved. Satisfaction changed little, adverse events were similar, and quality of life was not reported.

Published: 20219 primary studies represented

Study design and methods

Design: Cochrane review of nine randomized or quasi-randomized trials
Population: Men with erectile dysfunction
Intervention: Any ginseng preparation versus placebo
Outcome: Erectile function, intercourse ability and satisfaction, adverse events, and quality of life

Open research record ↗

2014

Mixed or qualifiedPMID 25265315 · NCT01841229

The effect of ginseng on glycemic control

Fasting glucose fell modestly, while insulin, HbA1c, and insulin resistance did not improve overall. Short duration and product variability prevent treating the glucose change as established diabetes control.

Published: 201416 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 16 randomized trials
Population: People with and without diabetes, mostly in short trials with relatively good baseline control
Intervention: Panax ginseng preparations versus control for at least 30 days
Outcome: Fasting glucose, insulin, HbA1c, and insulin resistance

Open research record ↗

Unscreened discovery appendix—not evidence162 candidate publicationsSearch run: Aug 21, 2026

Complete for the displayed PubMed query at the search timestamp—not for all databases or every possible synonym. Candidates can be irrelevant, duplicate the same study, or report negative findings. They are never summed as evidence or participants until screened.

03 / SOURCES

Start with the source material

Official evidence overviewNational Center for Complementary and Integrative Health Live PubMed discovery searchNational Library of Medicine

The live search is for discovery only. Search-result counts change and are not included in the audited totals above.

Recent PubMed discovery recordsDirect links to the first 12 records returned by the reproducible search. These are discovery candidates—not reviewed summaries or a count of supportive findings.

04 / EXPERT CONTEXT

Expert context—not evidence

Expert positions are dated context—not scientific evidence. They never raise the evidence status or become consensus by repetition.

No direct, source-verified endorsement is currently recorded. Research authorship or discussion alone is not treated as endorsement.