Supplement evidence

037 / 575Botanical

Ginger

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The short answer

Reducing some types of nausea, including pregnancy-related nausea under appropriate guidance.

Evidence and scope: Conditional or population-specific
This status does not grade the ingredient for every goal, outcome, or person.
Important limitation: Evidence does not support broad detoxification or longevity claims.
Before deciding: Can cause heartburn and may affect bleeding or glucose-control medicines.

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

NauseaAbout 1 g/day dried ginger equivalent is commonly studied

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

Divide with food or liquids for tolerance.

Do not combine casually

Anticoagulants, gallstones, reflux, diabetes medicines, and pregnancy dosing need 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.

4research papers in this ledger

109unique primary studies represented

—unique 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.

2022

Mixed or qualifiedPMID 36501010

Effects of Ginger Intake on Chemotherapy-Induced Nausea and Vomiting

Overall acute or delayed nausea and vomiting did not differ significantly. A low-dose, longer-than-four-day subgroup had less acute vomiting, but this subgroup signal does not establish a general adjunctive benefit.

Published: 202223 primary studies represented

Study design and methods

Design: Systematic review of 23 randomized trials with subgroup meta-analyses
Population: People receiving chemotherapy and standard antiemetic care
Intervention: Ginger supplements versus placebo or antiemetic comparators
Outcome: Acute and delayed nausea and vomiting

Funding or conflict note: Substantial trial overlap with the broad 2020 review means this synthesis is not counted again.

Open research record ↗

2020

Mixed or qualifiedPMID 31935866

Ginger on Human Health: A Comprehensive Systematic Review of 109 Randomized Controlled Trials

Pregnancy nausea, some inflammatory and metabolic measures, digestive function, and colorectal-cancer biomarkers showed relatively consistent signals, but many other claims were controversial. Only 43 trials met the review's high-quality criterion.

Published: 2020109 primary studies represented

Study design and methods

Design: Comprehensive systematic review of 109 randomized trials
Population: Diverse clinical populations across pregnancy, digestive, inflammatory, metabolic, pain, and other settings
Intervention: Varied ginger preparations, doses, and comparators
Outcome: Clinical symptoms, biomarkers, and adverse effects across indications

Funding or conflict note: The authors declared no conflict of interest. Participant totals were not reported in the abstract and are not inferred.

Open research record ↗

2020

Does not support the tested claimPMID 32214292

Effectiveness of Ginger on Pain and Function in Knee Osteoarthritis

The heterogeneous, poor-quality evidence was insufficient to support oral ginger for pain or function; topical comparisons also found no statistically clear advantage.

Published: 20207 primary studies represented

Study design and methods

Design: Systematic review of seven clinical trials; four in quantitative synthesis
Population: People with knee osteoarthritis
Intervention: Oral or topical ginger versus placebo or standard treatment
Outcome: Knee pain and function

Funding or conflict note: These trials are represented in the broad 2020 review and are excluded from aggregate totals.

Open research record ↗

2014

Mixed or qualifiedPMID 24642205 · CRD42011001237

The effect and safety of ginger in the treatment of pregnancy-associated nausea and vomiting

Nausea improved versus placebo, but vomiting did not significantly decline. No clear increase in the measured pregnancy or short-term adverse outcomes was detected, although evidence quality and reporting were limited.

Published: 2014n=1,278 participants12 primary studies represented

Study design and methods

Design: Systematic review and meta-analysis of 12 randomized trials
Population: 1,278 pregnant people with nausea and vomiting
Intervention: Oral ginger versus placebo or vitamin B6
Outcome: Nausea, vomiting episodes, spontaneous abortion, heartburn, and drowsiness

Funding or conflict note: These trials are represented in the broader 2020 review and are excluded from aggregate totals.

Open research record ↗

Unscreened discovery appendix—not evidence485 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.