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Herb · Rhizome · Digestive · Anti-nausea
Ginger
Zingiber officinale Roscoe · Adrak · Shengjiang · Zingibil · Jenjibre
One of the most universally used medicinal plants in human history, documented continuously across South Asia, East Asia, the Middle East, and Europe for over 5,000 years. Among the most clinically studied herbs for nausea and vomiting, with a substantial body of randomised controlled trials and consistent evidence for pregnancy-related nausea, chemotherapy-induced nausea, and post-operative nausea.
Research support
Strong
Multiple RCTs & meta-analyses
RCTs published100+
Meta-analyses10+
Strongest forNausea & vomiting
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Quick reference
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Research support summary
What the published research does and does not currently support
Some research suggests associations with
Reduced nausea and vomiting in pregnancy across multiple RCTs1,2 Reduced chemotherapy-induced nausea and vomiting3 Reduced post-operative nausea vs. placebo in surgical patients4 Modest reductions in markers of inflammation (CRP, TNF-α) in some trials5 Some evidence for pain reduction in osteoarthritis and dysmenorrhoea6,7 Research is limited or absent for
Any specific disease treatment or prevention claim Long-term safety beyond 12 weeks in most supplemental trials Most classical Ayurvedic and TCM indications in human clinical trials Optimal dosing across different forms (fresh vs dried vs extract) Motion sickness evidence is mixed across trials Key limitation
Most nausea trials use standardised ginger extract (250–1,000mg/day). Results from these trials should not be assumed to apply directly to fresh ginger tea or culinary amounts, which have lower and more variable gingerol content. Bioavailability of gingerols differs considerably between fresh, dried, and extract forms.
Research context
Ginger has among the most robust nausea evidence of any herbal remedy — multiple independent RCTs, consistent directional findings, and meta-analytic support. The anti-inflammatory and analgesic evidence base is growing but more mixed. Ginger’s culinary history makes it challenging to study at truly placebo-comparable doses without participant unblinding due to its distinctive taste and smell. Individual studies should be evaluated on their merits including sample size, blinding quality, and funding source.
Overview
Botanical illustration of Zingiber officinale, Köhler’s Medizinal-Pflanzen, 1887. Public domain — Wikimedia Commons.
Of all the plants that have travelled with human civilisation — carried along trade routes, packed into the holds of merchant ships, pressed into clay tablets as remedies — few have moved as far and left as deep a mark as ginger. Native to tropical South and Southeast Asia, Zingiber officinale had reached the Mediterranean world by at least the first century CE, was documented in Roman cookery and Greek medicine, entered the Arab pharmacopoeia, crossed to Europe in the early medieval period, and is today among the most widely grown culinary and medicinal plants on earth. Its Sanskrit name shringavera — “body like a horn” — describes the shape of its rhizome, the fleshy underground stem that holds its heat, fragrance, and medicine. In Ayurvedic medicine, ginger holds the rank of vishwabheshaj — “the universal medicine” — a term that speaks to the breadth of conditions for which it has been prescribed across three millennia. The Charaka Samhita describes it as an essential ingredient in hundreds of formulations. In Traditional Chinese Medicine it is classified as both a fresh herb (shengjiang, warming, dispersing) and a dried herb (ganjiang, hot, tonifying) — two pharmacologically distinct preparations with different clinical applications. Today it is the subject of over one hundred published randomised controlled trials, with the most consistent evidence concentrated in nausea management — a use that maps directly onto its oldest documented applications.8 Ayurveda — the 5,000-year system in which ginger is classified as the universal medicine
Traditional Chinese Medicine — ginger’s dual classification as fresh and dried herb
Cultural & historical significance
Ginger’s documentation history spans at least five millennia and five major medical traditions across three continents, making it one of the most geographically widespread and temporally continuous medicinal plants in recorded history. c. 3000 BCE Earliest documented use in Sanskrit texts of South Asia. Referenced in the Atharva Veda as both a medicinal plant and a ritual offering. Cultivation established in tropical India and Southeast Asia. c. 500 BCE Documented in the Charaka Samhita as vishwabheshaj (universal medicine) and classified as a primary digestive, carminative, and warming herb. Used in hundreds of classical Ayurvedic formulations.8 c. 400 BCE Documented in Chinese herbal texts. Shengjiang (fresh ginger) and ganjiang (dried ginger) established as pharmacologically distinct preparations — a distinction maintained in TCM practice to the present day. 1st century CE Documented by Dioscorides in De Materia Medica as a warming digestive and carminative. Traded into Rome via Arab merchants. Pliny the Elder records it as widely available in Roman markets.9 1025 CE Documented by Ibn Sina in the Canon of Medicine as a digestive tonic, aphrodisiac, and warming herb. Integrated into Unani medicine as zanjabeel. Considered hot and dry in the second degree per humoral classification. 11th–13th century CE Ginger becomes a major commodity in the medieval European spice trade. Valued medicinally and as a preservative. Documented in English herbals as a remedy for digestive ailments, cold conditions, and plague prevention. 1980s–present Systematic clinical investigation begins. Gingerols and shogaols isolated and characterised. First RCTs for nausea published. Over 100 RCTs completed by 2026 covering nausea, inflammation, pain, and metabolic outcomes. Native range & documented traditional use — Zingiber officinale
Native range
Documented traditional use
Map sources
Native range: Ravindran & Babu (2005). Ginger: The Genus Zingiber. CRC Press. · Traditional use citations: WHO Monographs on Selected Medicinal Plants Vol. 1 (1999); Wichtl (2004) Herbal Drugs and Phytopharmaceuticals.
Geographic distribution of Zingiber officinale native range and documented traditional use regions. Map by Ancient Medicine Hub using Natural Earth data.
Ayurveda (India)
Classified as vishwabheshaj (universal medicine) — one of the highest designations in the classical pharmacopoeia. Fresh ginger (adrak) is considered cooling and light; dried ginger (sonth) is hot and heavy. Indicated for agnimandya (digestive weakness), ama (metabolic toxins), and shwasa (respiratory conditions). A foundational ingredient in trikatu (three-pungent formula) alongside black pepper and long pepper.8
Traditional Chinese Medicine
Two distinct herbs: fresh shengjiang (warming, dispersing, treating exterior cold and nausea) and dried ganjiang (hot, tonifying, treating interior cold and deficiency). Shengjiang is used fresh to warm the stomach and stop vomiting; ganjiang to warm the channels in conditions of cold deficiency. A foundational herb in the classical formula Xiao Ban Xia Tang (Minor Pinellia Decoction) for nausea.10
Unani & Islamic medicine
Known as zanjabeel. Classified as hot and dry in the second degree. Ibn Sina used it as a digestive tonic, carminative, and aphrodisiac. Al-Biruni documented its use across the Islamic world. Widely used in compound formulations for digestive weakness, cold conditions, and joint pain. The Quran mentions ginger as a drink of paradise (zanjabeelan), elevating its cultural status.9
European & global spread
Reached Europe via the spice trade by the 11th century. Documented in European herbals as a remedy for digestive complaints, cold and flu, and joint pain. Gingerbread became a medieval European staple. Carried by colonising powers to the Americas, Africa, and the Caribbean, where it integrated into local healing traditions — particularly in Jamaica, where ginger beer and ginger tea remain central to folk medicine practice.
Unani medicine — the Islamic medical tradition that spread ginger across the medieval world
Botanical description & cultivation
Botanical profile
Family: Zingiberaceae. Perennial rhizomatous herb, 60–120cm. Leaves lance-shaped, 15–30cm, bright green, aromatic. Flowers yellow-green with purple lip, in dense spikes; rarely produced in cultivation. Rhizome (the medicinal part) is irregularly branched, pale yellow to buff externally, yellow-white internally, strongly aromatic and pungent. Fibrous when old.
Cultivation & production
Propagated vegetatively from rhizome sections. Requires tropical or subtropical climate — high humidity, partial shade, well-drained loamy soil. Harvested 8–10 months after planting. India is the world’s largest producer (~2 million tonnes/year), followed by China, Nigeria, and Indonesia. Jamaica and Australia produce premium quality for the specialty market. India, China, and Nigeria together supply over 75% of global commercial ginger.11
Fresh vs. dried — different medicines
Fresh and dried ginger are pharmacologically distinct. Fresh rhizome is rich in gingerols, particularly 6-gingerol. Drying converts gingerols to shogaols (more pungent, more potent anti-nausea activity) and paradols. Zingerone forms from gingerols on heating. This transformation means clinical results from fresh ginger studies cannot be directly applied to dried or extract forms, and vice versa.
Related species
Zingiber zerumbet (wild ginger, shampoo ginger) is sometimes confused with culinary ginger but has a different phytochemical profile and is used primarily topically in traditional medicine. Alpinia galanga (galangal) and Curcuma longa (turmeric) are Zingiberaceae relatives with overlapping but distinct medicinal applications. Product labelling should specify Z. officinale.
Applications & traditional uses
Traditional use of an application does not, by itself, indicate clinical research support for that use. These are listed separately below. The applications with the strongest clinical evidence base are nausea-related.
Volume of published clinical research by application area (indicative): Active compounds & phytochemistry
Over 400 chemical constituents have been identified in ginger. The pungent principles — gingerols, shogaols, and paradols — are most extensively studied. Proposed mechanisms derive primarily from in vitro and animal research unless otherwise stated.
Key clinical studies
Pregnancy nausea — Viljoen et al.2014
Systematic review and meta-analysis of 12 RCTs (n=1,278). Ginger supplementation associated with statistically significant reduction in nausea severity in first trimester pregnancy. Authors note generally small sample sizes and heterogeneous outcome measures as limitations.
RCTChemotherapy-induced nausea — Ryan et al.2012
Double-blind RCT (n=576). Ginger supplementation (0.5g and 1g doses) associated with significant reductions in acute chemotherapy-induced nausea vs. placebo when added to standard antiemetic therapy. The 2g dose showed less benefit, suggesting a dose-response threshold. Largest ginger RCT published to date.
Post-operative nausea — Tóth et al.2018
Meta-analysis of 7 RCTs. Ginger supplementation associated with reduced post-operative nausea and vomiting vs. placebo. Effect size was modest and confidence intervals wide, reflecting heterogeneous surgical populations. Authors recommend further adequately powered trials.
RCTOsteoarthritis pain — Altman & Marcussen2001
Double-blind RCT (n=247, 6 weeks). Standardised ginger extract associated with significant reduction in knee pain on standing vs. placebo in osteoarthritis patients. Gastrointestinal side effects more frequent in ginger group. One of the landmark studies establishing ginger’s analgesic potential.
RCTDysmenorrhoea — Ozgoli et al.2009
Double-blind RCT (n=150). Ginger 250mg four times daily associated with significant reduction in menstrual pain severity vs. placebo over first 3 days of menstruation. Effect size comparable to ibuprofen and mefenamic acid in this study’s design — though direct comparisons across studies are methodologically limited.
Population caveat: young women with primary dysmenorrhoea only. Results should not be generalised to other pain conditions or populations.
Practical guide: preparation & use
 Fresh ginger rhizomes (Zingiber officinale) ready for use. The fresh rhizome is richer in gingerols; drying converts them to more potent shogaols. CC0 — Wikimedia Commons.The following documents traditional and contemporary preparation methods for educational purposes. Clinical trial doses are noted where applicable — these are not personal dosage recommendations. Fresh, dried, and extract forms have distinct phytochemical profiles and clinical evidence bases; results from one form should not be assumed to apply to another. 1. Fresh ginger tea — adrak chai Traditional · Most practised globally
Fresh ginger tea is the most universally practised preparation across all traditions. It is the method described in Ayurvedic classical texts for digestive complaints, nausea, and respiratory conditions, and remains the form most commonly used by practitioners and households across South Asia, East Asia, the Middle East, and the Caribbean. The fresh rhizome contains the highest concentration of gingerols — the primary bioactive compounds associated with nausea relief in clinical research, though the clinical studies that quantify this benefit used standardised extract doses rather than fresh tea preparations.1 Fresh ginger tea — traditional preparation
Classical Ayurvedic method · Adrak chai · Cha gừng · Zenzero fresco
Fresh ginger root
2–3cm piece (≈15–20g)
Unpeeled or peeled, thinly sliced or grated. Older rhizome is more pungent and fibrous.
Sourcing guidance
Water
300ml (1¼ cups)
Cold water brought to a boil with ginger extracts more gingerols than adding to boiling water.
Black pepper
2–3 whole peppercorns (optional)
Per Ayurvedic trikatu tradition. Piperine may enhance bioavailability of ginger compounds.
Piperine & absorption →
Raw honey
1 tsp (optional)
Add after cooling to below 40°C per Ayurvedic convention. Do not heat honey.
Why not heat honey? →
Lemon juice
½ lemon (optional)
Common addition in European and Caribbean traditions. Adds vitamin C and brightens flavour.
Tulsi (holy basil)
4–5 leaves (optional)
Classical Ayurvedic addition for respiratory conditions. Adds adaptogens and flavour.
Tulsi entry →
1 Prepare the ginger
Wash the rhizome thoroughly. You may peel it or leave the skin on — the skin contains additional phytochemicals. Slice thinly (1–2mm) across the grain, or grate if you prefer a more intense flavour and stronger extraction. Fresh ginger grated gives approximately 2–3× the surface area of sliced ginger of the same weight, yielding a more potent preparation.
For nausea applications, clinical trials used standardised extract capsules rather than fresh tea. If managing nausea, a standardised extract with 5% gingerols may be more consistent. See preparation 2 below.
Mortar & pestle — for grating and grinding
2 Combine with cold water and bring to the boil
Place sliced or grated ginger in a small saucepan with cold water. Starting from cold extracts more gingerols into the water as it heats. Add peppercorns if using. Bring to a full boil over medium heat.
3 Simmer 10–15 minutes over low heat
Reduce heat to a gentle simmer and maintain for 10–15 minutes. Longer simmering increases shogaol content (gingerols partially convert to shogaols on sustained heating) and deepens flavour. For a milder preparation suited to sensitive stomachs, 5 minutes is sufficient.
Classical Ayurvedic texts specify manda agni (low fire) for medicinal decoctions. Extended low heat is preferred over brief high heat.
Decoction — the classical herbal preparation method
4 Strain and cool slightly before sweetening
Strain through a fine-mesh strainer into a mug, removing all ginger pieces and peppercorns. Allow to cool until comfortably warm — approximately 50–60°C. Add lemon juice if using. Wait until below 40°C before adding honey, per Ayurvedic guidance.
Golden milk with ginger
Add ¼ tsp turmeric and a pinch of black pepper to the simmer for a ginger-turmeric combination. A fat carrier (coconut milk or ghee) enhances curcumin absorption. See Turmeric entry for full recipe.
Ginger compress (topical)
Steep 50g grated fresh ginger in 1L hot (not boiling) water for 20 minutes. Soak a cloth and apply to area of pain or tension. Traditional Ayurvedic and Japanese practice for joint pain and muscle aches.
Ginger tonic syrup
Simmer 200g grated ginger with 500ml water and 200g raw sugar for 20 minutes. Strain. Add juice of 2 lemons. Use as a concentrated cordial: 1–2 tbsp in hot water or sparkling water. Caribbean and Jamaican tradition.
TCM fresh ginger decoction
Use 3–5 slices of fresh ginger with other TCM herbs as directed by a practitioner. Shengjiang is almost always used as part of a compound formula in classical TCM — rarely as a single herb preparation.
Equipment
Mortar & pestle / grater
Decoction pot
Fine-mesh strainer
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A ceramic or granite mortar and pestle, fine-mesh strainer, and small saucepan serve all herb preparations in this encyclopedia. A one-time investment.
Preparation techniques & tools — related encyclopedia entries
Decoction → The core extraction technique used in this recipe. History across Ayurveda, TCM, and European herbalism. Mortar & pestle → One of the oldest tools in medicine — for grating and grinding ginger root across all traditions. Honey — traditional medicine → Medicinal uses of honey across Ayurveda, Unani, Egyptian, and Greek traditions. Turmeric → Zingiberaceae family member frequently combined with ginger in golden milk and trikatu formulas. Ginger vs Turmeric → Side-by-side comparison of two Zingiberaceae herbs with overlapping anti-inflammatory applications. Trikatu — three-pungent formula → The classical Ayurvedic three-herb formula of ginger, black pepper, and long pepper for digestion and bioavailability. 2. Standardised extract (capsule) Highest research support
The majority of published clinical trials for nausea used standardised ginger extract in capsule form at doses of 250mg–1g per day, typically standardised to 5% total gingerols. This form provides a consistent, measurable dose and is the most direct equivalent to the doses studied in RCTs. For pregnancy-related nausea, capsule form is also the most practical and avoids the difficulty of preparing fresh tea during nausea episodes. Trial dose range 250mg–1g daily Standardisation 5% gingerols (typical) Best-studied indication Pregnancy nausea Research quality Highest of all forms Sourcing & quality guidance
1For fresh ginger, choose firm, heavy rhizomes with smooth skin and no soft spots or mould. Organic certification reduces pesticide exposure — ginger skin is thin and permeable.
2For dried powder, choose certified organic, food-grade ginger powder from a supplier that tests for heavy metals and aflatoxins. Spice-grade powder is appropriate for culinary use; for medicinal doses, look for a stated gingerol content.
3For standardised extract capsules, look for a stated gingerol percentage (5% is standard) and third-party testing (USP, NSF, or Informed Sport certification). Named brands with published clinical use include Zintona and EV.EXT.35.
4Avoid products making specific medical claims on the label — these violate supplement regulations in most jurisdictions and are a quality red flag.
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Products selected to match AMH sourcing standards — organic certification, third-party testing, and named gingerol standardisation where applicable.
Organic ginger root powder Organic certified · Food-grade · For culinary and tea use Standardised ginger extract 250mg 5% gingerols · Third-party tested · Capsule form Ginger chews — nausea-specific Convenient form · Used in clinical trial protocols · No water needed Ginger tincture (liquid extract) Fresh rhizome · Organic alcohol extraction · For acute use Ginger essential oil (topical only) For compress and massage applications · Not for internal use Affiliate disclosure: links may earn a small commission at no added cost to you. Product selection is editorial — no payment accepted for inclusion.
📥 Free download: Ginger Reference Card
Printable single-page reference — preparation methods, sourcing checklist, safety notes, and clinical trial dose summary. Designed for kitchen and clinical use.
📖 Traditional Preparation Methods — guidebook
15 traditional preparation techniques with step-by-step instructions across Ayurveda, TCM, and European herbalism.
Safety, cautions & contraindications
Safety notice
Ginger is generally well tolerated at culinary doses and at supplemental doses used in clinical trials (up to 1–2g/day) in healthy adults. The cautions below are drawn from published literature and clinical case reports. This is educational content — it does not replace consultation with a qualified healthcare provider, particularly during pregnancy, before surgery, or alongside prescription medications.
Pregnancy Culinary doses appear well tolerated in pregnancy and are supported by meta-analytic data for nausea. High-dose supplementation (>1g/day) should be discussed with a healthcare provider due to theoretical concerns about platelet effects in late pregnancy. Traditional use in some systems advises avoidance in high doses in first trimester. Anticoagulants / blood thinners Ginger has antiplatelet properties in vitro and at higher doses. Theoretical interaction with warfarin, aspirin, heparin, and newer anticoagulants. Clinical significance at culinary doses is low, but supplemental doses should be discussed with a prescribing provider. Monitor INR if using alongside warfarin. Pre-surgery Antiplatelet properties may affect bleeding time. Most anaesthetic protocols recommend discontinuing herbal supplements 1–2 weeks before elective surgery. Discuss with your surgical team. Gallstones Ginger stimulates bile production. May be contraindicated in gallstone disease — increased bile flow could theoretically trigger biliary colic. Use with caution; consult a healthcare provider if you have gallbladder conditions. Gastrointestinal effects The most commonly reported side effects at supplemental doses are mild: heartburn, belching, and mild GI discomfort, particularly on an empty stomach. Taking with food reduces these effects. Incidence is low in published clinical trials. General tolerability Well tolerated in healthy adults at culinary doses indefinitely and at supplemental doses (250mg–1g/day) for up to 12 weeks in clinical trials. No significant hepatotoxicity or renal toxicity reported at standard doses.
Frequently asked questions
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Products selected to match AMH sourcing standards — organic certification, third-party testing, and named gingerol standardisation where applicable.
Standardised ginger extract 250mg 5% gingerols · Third-party tested · Capsule form Organic ginger root powder Organic certified · For culinary and tea use Ginger chews — nausea-specific Convenient form · No water needed Affiliate disclosure: links may earn a small commission at no added cost. Product selection is editorial.
📖 Anti-Inflammatory Herbs Guidebook
A complete reference covering ginger, turmeric, boswellia, and 9 other anti-inflammatory herbs — comparative evidence tables, preparation protocols, and safety checklists.
🌿 AMH Research Community
Extended encyclopedia entries, monthly research digests, preparation video guides, and practitioner Q&A sessions. Access the full clinical evidence database.
Sources & references
16 sources. PubMed links provided where available. Verified April 2026. 1Viljoen E et al. A systematic review and meta-analysis of the effect and safety of ginger in the treatment of pregnancy-associated nausea and vomiting. Nutr J. 2014. PubMed 24820963
2Boone SA, Shields KM. Treating pregnancy-related nausea and vomiting with ginger. Ann Pharmacother. 2005. PubMed 15886294
3Ryan JL et al. Ginger for chemotherapy-related nausea in cancer patients. Support Care Cancer. 2012. PubMed 22183960
4Tóth B et al. The efficacy of ginger for the prevention of post-operative nausea and vomiting: meta-analysis. Phytomedicine. 2018. PubMed 29768546
5Mashhadi NS et al. Anti-oxidative and anti-inflammatory effects of ginger in health and physical activity. Int J Prev Med. 2013. PubMed 23717767
6Altman RD, Marcussen KC. Effects of a ginger extract on knee pain in patients with osteoarthritis. Arthritis Rheum. 2001. PubMed 11606673
7Ozgoli G et al. Effects of ginger capsules on pregnancy, nausea, and vomiting. J Altern Complement Med. 2009. PubMed 19216660
8Prasad S, Tyagi AK. Ginger and its constituents: role in prevention and treatment of gastrointestinal cancer. Gastroenterol Res Pract. 2015. PubMed 25883610
9Afzal M et al. Ginger: an ethnomedical, chemical and pharmacological review. Drug Metabol Drug Interact. 2001. PubMed 11922308
10Chen JK, Chen TT. Chinese Medical Herbology and Pharmacology. Art of Medicine Press, 2004.
11FAO. FAOSTAT crop production statistics: Ginger. Food and Agriculture Organisation of the United Nations, 2022. fao.org/faostat
12Semwal RB et al. Gingerols and shogaols: important nutraceutical principles from ginger. Phytochemistry. 2015. PubMed 25672613
13Ernst E, Pittler MH. Efficacy of ginger for nausea and vomiting: a systematic review of randomized clinical trials. Br J Anaesth. 2000. PubMed 10736174
14Ravindran PN, Babu KN (eds). Ginger: The Genus Zingiber. CRC Press, 2005.
15WHO. WHO Monographs on Selected Medicinal Plants, Vol. 1: Rhizoma Zingiberis. World Health Organisation, 1999.
16Bode AM, Dong Z. The amazing and mighty ginger. In: Benzie IFF, Wachtel-Galor S, eds. Herbal Medicine: Biomolecular and Clinical Aspects. 2nd ed. CRC Press, 2011. PubMed 22593926
Medical disclaimer
This entry is for educational and informational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations of any kind. Nothing published here should replace consultation with a qualified healthcare provider, particularly before starting or stopping any supplement or treatment, or if you are pregnant, breastfeeding, taking prescription medications, or managing any health condition. Ancient Medicine Hub does not endorse any specific product, brand, or practitioner.
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Standardised ginger extract 250mg 5% gingerols · Third-party tested Organic ginger root powder Organic certified · Food-grade Affiliate disclosure: links may earn a small commission at no added cost. Product selection is editorial.
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Quick facts
FamilyZingiberaceae
SpeciesZ. officinale
Parts usedRhizome (fresh & dried)
Native rangeSouth & SE Asia
TraditionsAyurveda, TCM, Unani
Key compoundsGingerols, shogaols
Taste (rasa)Pungent, sweet (dried)
Dosha effectVK↓ P↑ in excess
Energy (virya)Warming
First documentedc. 3000 BCE
RCTs published100+
Research supportStrong
On this page
1Quick reference
2Research summary
3Overview
4Cultural & historical
5Botanical & cultivation
6Applications
7Active compounds
8Key clinical studies
9Preparation guide
10Safety & cautions
11FAQs
12Related entries
13Sources & references
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