Dried Rhizome Powder
The most clinically studied form. Standardised powdered rhizome in capsules at 500–2000 mg/day is used in RCTs for nausea, dysmenorrhoea, diabetes, and migraine. Gingerol and shogaol content must be verified for standardisation.
Zingiber officinale Roscoe — One of the most versatile medicinal rhizomes in the world, with 101 references spanning antiemetic, anti-inflammatory, antidiabetic, antiviral, and analgesic pharmacology across gingerols, shogaols, and zingiberene.
Ginger is one of the world's most studied medicinal rhizomes, used continuously across Asian, Middle Eastern, and European medical traditions for millennia. Its complex phytochemical matrix — gingerols, shogaols, paradols, and zingiberene — accounts for a broad and well-evidenced pharmacological profile spanning antiemetic, anti-inflammatory, antidiabetic, antiviral, cardiotonic, and analgesic domains. Listed in the French Pharmacopoeia and assessed by the EMA.
Ginger is a large perennial tropical herb with a reed-like bearing, growing from a branched, fleshy rhizome that forms the basis of all medicinal and culinary use. Its aerial stems bear linear-lanceolate leaves and a dense spike inflorescence with white or yellow flowers surrounded by bracts. The rhizome — commonly called the "root" — is hand-shaped, knobbly, and intensely aromatic.
Native to tropical South and South-East Asia, ginger is now cultivated throughout all tropical zones — India, Jamaica, China, West Africa, the Caribbean, Australia, and beyond. India remains the world's largest producer. The plant's rhizome "eyes" give rise to new buds seasonally, allowing vegetative propagation across tropical climates.
Etymology
The botanical name Zingiber derives from the Sanskrit shringavera, meaning "antler-shaped" — a reference to the form of young shoots emerging from the rhizome. The name passed through Greek zingiberis and Latin zingiber into most European languages.
Quality & Standardisation Note
Ginger dietary supplements require quality control and standardisation including quantitative analysis of gingerols and shogaols, as concentrations vary substantially by geographic origin, processing method, and storage conditions — variables that directly affect clinical efficacy. [4]
Ginger has been prized since remote antiquity — the Wikiphyto source notes it was so valued in the Middle Ages that it was believed to come from the Garden of Eden. Cultivated as a spice and condiment across all tropical countries, it forms part of traditional medicine in India, China, the Arab world, and the Caribbean, and entered European pharmacy via ancient trade routes.
Ginger — called shringavera in Sanskrit — was a foundational herb in Ayurvedic practice for digestive, respiratory, and rheumatic conditions. In Traditional Chinese Medicine it was prescribed for cold-induced vomiting, cough, and yang-deficiency conditions.
In Arabic medicine, ginger was classified as a warming aphrodisiac and tonic. Ibn Sina described it for digestive weakness and sexual debility. It forms part of the classic Fioravanti's alcoolat — a compound preparation used in European pharmacy from the Renaissance onward.
Ginger was so prized in medieval Europe it was believed to originate in the Garden of Eden. It entered European trade via Arab intermediaries and became among the most valuable spices in medieval commerce, used in cuisine, medicine, and brewing (ginger ale, ginger beer).
The rhizome is listed in the French Pharmacopoeia Liste A. The EMA/HMPC published a revised herbal monograph (EMA/HMPC/885789/2022) in May 2025 establishing well-established and traditional use categories for antiemetic and digestive indications.
Medieval Tradition
"Ginger was so prized in the Middle Ages it was thought to come from the Garden of Eden — a testament to its extraordinary therapeutic reputation across cultures and centuries."
Wikiphyto — Histoire et tradition
Ginger also enters the composition of Soshiho-tang, a classical traditional Chinese and Japanese multi-herb preparation, and ginger-ale — a beverage that preserves the plant's digestive and carminative reputation in popular culture globally.
The rhizome is the primary medicinal part in all forms; the essential oil distilled from it is used separately in aromatherapy and topical applications.
The most clinically studied form. Standardised powdered rhizome in capsules at 500–2000 mg/day is used in RCTs for nausea, dysmenorrhoea, diabetes, and migraine. Gingerol and shogaol content must be verified for standardisation.
Hydroalcoholic tincture of the underground part for oral use. Fresh ginger infusion (sliced rhizome in hot water) retains heat-labile constituents including fresh gingerols and is used for travel sickness, nausea of pregnancy, and digestive complaints.
Steam-distilled from fresh or dried rhizome. Rich in zingiberene (30%) and β-sesquiphellandrene (10%). Used by inhalation for postoperative nausea, topically for arthritic and muscular pain, and as an immunostimulant. Requires dilution — dermocaustic at pure concentration.
Based on EMA/HMPC herbal monograph on Zingiber officinale rhizome (Revision 1, EMA/HMPC/885789/2022, May 2025) and clinical trial data. [2]
The rhizome contains a distinctive matrix of arylalkane pungent principles (gingerols, shogaols), sesquiterpene-rich essential oil, diarylheptanoids, and abundant starch — each fraction contributing distinct pharmacological activities.
TRPV1 Channel Activator
Both gingerols and shogaols are activators of the TRPV1 (transient receptor potential vanilloid 1) channel — the same receptor targeted by capsaicin — producing counter-irritant analgesia and contributing to ginger's antipruritic and analgesic effects. [24]
Cardiotonic (Ca²⁺-ATPase)
[8]-gingerol activates the Ca²⁺-pumping ATPase of sarcoplasmic reticulum in guinea pig atrial muscle — a cardiotonic mechanism distinct from classical cardiac glycosides. [39]
6-Shogaol — Anticancer
6-gingerol and especially 6-shogaol inhibit growth and modulate angiogenic factor secretion in ovarian cancer cells and hepatoma (HepG2) cells — identified as key anticancer constituents. [51]
Bioavailability Enhancer
Ginger in a pharmaceutical formulation improves the bioavailability of co-administered compounds — a property attributed to β-sesquiphellandrene and other EO constituents acting on intestinal absorption mechanisms. [57]
Ginger increases salivary flow and intestinal peristalsis, supports digestion, and has antiulcer activity. A review of 12 commonly used medicinal herbs confirms its digestive tonic properties. [5]
A powerful antiemetic, superior to placebo and as effective as metoclopramide for postoperative nausea. Shogaols and gingerols act on D2 and 5-HT3 receptors. Systematic review of RCTs confirms clinical efficacy. [9][10]
Ginger oil protects against aspirin- and pylorus ligation-induced gastric ulcers in rats. In vitro activity against Helicobacter pylori has also been demonstrated, supporting its antiulcer traditional use. [11][12]
Ethanolic extract of Zingiber officinale rhizomes demonstrates protective activity against liver cirrhosis in vivo, attributed to its antioxidant and anti-inflammatory constituents. [13]
Broad anti-inflammatory activity documented across multiple models — rat paw oedema, osteoarthritic cartilage explants, knee pain in OA patients. Mechanism involves Akt inhibition, NF-κB activation (releasing anti-inflammatory cytokines), and prostaglandin/leukotriene synthesis inhibition. [14][15][16][17][18][19][20]
Ginger reduces muscle pain caused by eccentric exercise. A systematic review of clinical trials confirms moderate analgesic efficacy. Gingerols and shogaols activate TRPV1 channels, contributing to counter-irritant analgesia. [22][23][24]
Red ginger demonstrates tonic properties. Ginger attenuates acute and chronic restraint stress-induced perturbations in experimental animals, supporting its classification as an adaptogenic plant. [25][26]
Curcumin, gingerols, shogaols, and paradols are powerful free radical scavengers. Paradols are ranked among the most potent natural antioxidants known. Ginger also protects DNA against hydrogen peroxide-induced damage. [29]
Ginger stimulates humoral and cell-mediated immune responses in experimental models. Evidence-based systematic review confirms immunomodulatory activity across multiple human and animal studies. [27][28]
Ginger has a traditional reputation as an aphrodisiac. Studies using herbal aphrodisiacs in Arab medicine confirm increased sperm count and motility in experimental models. [30]
Clinical studies and meta-analyses confirm that powdered rhizome improves insulin sensitivity, stimulates insulin secretion, and reduces fasting blood glucose and HbA1c in type 2 diabetic patients across multiple RCTs. [31][32][33][34][35][36]
Ginger demonstrates antidiabetic and hypolipidaemic properties in streptozotocin-induced diabetic rats. Inhibition of thromboxane synthase in vitro reduces platelet aggregation tendency, contributing to an antithrombotic profile. [37][97]
Gingerols are established cardiotonic principles. [8]-Gingerol activates sarcoplasmic reticulum Ca²⁺-ATPase in guinea pig atrial muscle, producing positive inotropic effects without the toxicity of classical cardiac glycosides. [38][39]
Ginger demonstrates efficacy in migraine through multiple mechanisms. Double-blind RCTs confirm ginger potentiates NSAID effect in acute migraine treatment and shows prophylactic activity. Sublingual feverfew–ginger combination reduces migraine symptoms in early-phase attacks. [40][75][76][77]
Oral supplementation with Zingiber officinale extract improves cognitive function — specifically working memory and attention — in middle-aged healthy women in a placebo-controlled study. [41]
Broad antiviral activity documented: fresh ginger against RSV; sesquiterpenes against rhinovirus; activity against avian influenza H9N2, Chikungunya virus, HCV in vitro, Herpes simplex (including acyclovir-resistant strains), and influenza virus. β-Sesquiphellandrene is the key antiviral constituent. [47][48]
Active against Bacillus subtilis, B. anthracis, Staphylococcus aureus, Salmonella typhi, Escherichia coli, and Proteus mirabilis in preclinical models. [49]
Shogaols and gingerols demonstrate molluscicidal activity and anti-schistosomiasis/bilharziasis activity in preclinical models — a pharmacological property of potential relevance in endemic tropical regions.
Gingerol and zingerone demonstrate antimutagenic activity in mutagenicity assays. Ginger also protects DNA against hydrogen peroxide-induced damage and inhibits nicotine-induced cancer cell migration. [29]
Ginger inhibits growth and modulates angiogenic factor secretion in ovarian cancer cells and hepatoma (HepG2) cells. 6-Gingerol and especially 6-shogaol are the principal anticancer constituents. Protection of the kidney against cisplatin-induced nephrotoxicity also demonstrated. [50][51][52]
Ginger extract in a randomised controlled trial was comparable to loratadine in the treatment of allergic rhinitis. Ginger also reduces allergic airway inflammation by suppressing Th2-mediated immune responses. [53]
Ginger demonstrates antitussive and expectorant activity, supporting traditional use for cough, bronchitis, and respiratory tract congestion. [54][55][56]
The presence of ginger in a formulation improves the bioavailability of co-administered herbal or pharmaceutical compounds — a recognised piperine-like effect attributed to β-sesquiphellandrene and related EO constituents. [57]
Reviews confirm beneficial effects of ginger on obesity and metabolic syndrome through multiple mechanisms including thermogenesis, appetite suppression, lipid metabolism modulation, and insulin sensitisation. [72][73]
Dietary spices including ginger protect against hydrogen peroxide-induced DNA damage in cell models and inhibit nicotine-induced cancer cell migration — antimutagenic and chemopreventive properties. [29]
The essential oil of ginger rhizome shares and extends the anti-inflammatory and antiemetic activity of the whole plant, with additional antifungal, immunostimulant, and topical analgesic properties.
EO of ginger demonstrates antinociceptive and anti-inflammatory activity in experimental animal models. Topical application of ginger essential oil in a dermal formulation attenuates the severity of adjuvant arthritis in Lewis rats. [58][59][60][61]
In vitro activity of ginger EO against fluconazole-resistant and fluconazole-susceptible Candida spp. has been confirmed, suggesting potential in topical antifungal applications. [62]
Ginger EO demonstrates immunomodulatory activity, supporting both humoral and cell-mediated immune responses. It opposes immunosuppression in experimental models. [63]
The EO is stomachic, carminative, laxative, apéritif, and anti-nausea by inhalation. A three-EO mixture including ginger EO proved effective in postoperative nausea; inhalation alone shows mixed evidence for chemotherapy-induced nausea. [64][86][87]
A fraction of ginger EO containing α-zingiberene, β-sesquiphellandrene, bisabolene, and curcumene demonstrates synergistic anti-ulcer activity — exemplifying pharmacological synergy between EO components. [65]
The EO contributes antispasmodic, antitussive, and expectorant activity, complementing whole-plant respiratory indications for cough, bronchitis, sinusitis, and chronic catarrh.
High doses of ginger EO in mice induce behavioural and memory alterations due to antagonist activity on the central muscarinic cholinergic system — a dose-dependent sedative effect distinct from the stimulant properties of low doses. [66]
Massage with aromatic ginger and orange essential oil is effective for moderate-to-severe knee pain in the elderly. Swedish massage with aromatic ginger oil reduces chronic low back pain in older adults in an RCT. [89][90]
The EO is classified as a sexual tonic and aphrodisiac in traditional aromatherapy, with indications for male impotence and female frigidity, consistent with whole-plant spermatogenic and libido-stimulant properties.
Ginger's clinical indications span gastroenterology, gynaecology, rheumatology, neurology, and metabolic medicine, with one of the broadest evidence bases in phytomedicine.
Ginger's broad pharmacology emerges from convergent actions on prostaglandin synthesis, serotonin and dopamine receptor systems, NF-κB signalling, and TRPV1 channels.
Gingerols and gingerediones inhibit both cyclooxygenase (COX) and lipoxygenase (LOX) pathways, reducing prostaglandin and leukotriene synthesis. This dual inhibition — unlike NSAIDs which are primarily COX-selective — accounts for ginger's anti-inflammatory, antalgic, and antidysmenorrhoeic activity with a favourable gastric safety profile. [21]
Shogaols and gingerols act on dopamine D2 and serotonin 5-HT3 receptors — the same targets as classical antiemetics metoclopramide and ondansetron. Galanolactone (a diarylheptanoid from Chinese ginger) is a competitive 5-HT3 antagonist. This dual receptor activity explains the breadth of antiemetic efficacy across nausea subtypes. [9]
Both gingerols and shogaols activate the TRPV1 (transient receptor potential vanilloid 1) channel — the nociceptor also targeted by capsaicin. This activation initially produces a burning sensation, then desensitises the receptor, generating counter-irritant analgesia. This mechanism contributes to topical analgesic, antipruritic, and thermogenic effects. [24]
Ginger's anti-inflammatory mechanism is linked to inhibition of Akt kinase and activation of NF-κB pathways, triggering release of anti-inflammatory cytokines while reducing pro-inflammatory cytokine production (TNF-α, IL-1β, IL-6). This pathway explains the broad spectrum of anti-inflammatory activity across articular, metabolic, and respiratory models. [20]
Ginger improves insulin sensitivity through multiple mechanisms including GLUT-4 upregulation, AMPK activation, and inhibition of hepatic glucose production. Stimulation of insulin secretion from pancreatic β-cells has also been demonstrated, accounting for the complementary fasting and postprandial glucose-lowering effects. [31][32]
Ginger inhibits thromboxane synthase in vitro, reducing thromboxane A2 production and thereby impeding platelet aggregation — an antithrombotic mechanism relevant to cardiovascular protection. Clinically, this effect is context-dependent: not observed at culinary doses in healthy subjects, but documented in subjects with high fat diets. [97][98][99]
The rhizome of Zingiber officinale is listed in the French Pharmacopoeia, Liste A, recognising it as a plant with established medicinal use in France for both internal and external applications.
The European Medicines Agency's HMPC published Revision 1 of the EU herbal monograph on Zingiber officinale Roscoe, rhizome (EMA/HMPC/885789/2022) on 7 May 2025, establishing both well-established use and traditional use categories. [2]
Ginger rhizome preparations meeting pharmacopoeial standards qualify for registration as Traditional Herbal Medicinal Products under EU Directive 2004/24/EC for the traditional indications of nausea, digestive complaints, and loss of appetite.
Due to significant compositional variability between geographical origins and processing methods, ginger dietary supplements require quantitative analytical control of gingerols and shogaols content before clinical use. [4]
Ginger has a well-established safety profile with very few serious adverse effects. Key concerns are pharmacokinetic CYP interactions, anticoagulant interactions, and the nuanced pregnancy guidance.