American ginseng

View my plan →

The short answer

Small trials examine post-meal glucose, fatigue, and respiratory outcomes; products vary.

Evidence and scope: Mixed evidence
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: Trials are inconsistent or small, so a reliable clinically important benefit is not established.
Before deciding: Key concern: Warfarin, diabetes medicines, autoimmune disease, insomnia, pregnancy, and hormone-sensitive conditions require review.

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

Glucose-related research1–3 g root before a meal in small 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

Timing depends on the objective; use a standardized species-confirmed product.

Do not combine casually

Warfarin, diabetes medicines, autoimmune disease, insomnia, pregnancy, and hormone-sensitive conditions require review.

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.

1research papers in this ledger

1unique primary studies represented

24unique 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.

2019

Mixed or qualifiedPMID 29478187 · NCT02923453

American ginseng extract as add-on treatment in type 2 diabetes

HbA1c fell by 0.29 percentage points and several secondary markers favored ginseng, but only 24 participants completed this crossover trial. The findings are hypothesis-strengthening, not sufficient to establish routine diabetes treatment or long-term safety.

Published: 2019Duration: Two 8-week periods separated by at least a 4-week washoutn=24 participants

Study design and methods

Design: Double-blind, randomized, placebo-controlled crossover trial
Population: 24 adults with type 2 diabetes controlled by conventional treatment
Intervention: Standardized American ginseng extract 1 g with each meal (3 g/day) versus placebo as add-on therapy
Outcome: HbA1c, fasting glucose, blood pressure, lipids, and short-term liver and kidney safety markers

Funding or conflict note: One author was affiliated with Chai-Na-Ta Corp.; larger independent trials are needed.

Open research record ↗

Unscreened discovery appendix—not evidence24 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 overviewPubMed bounded human-evidence search 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.