[6]-Gingerol: the active molecule in ginger

[6]-Gingerol (six-gingerol) is the main bioactive phenolic compound in Zingiber officinale (fresh ginger). Chemical formula: C₁₇H₂₆O₄. Molar mass: 294.4 g/mol. It is the molecule responsible for most of ginger's anti-inflammatory, anti-nausea, and digestive benefits.

Synonyms and nomenclature

• 6-Gingerol
• (S)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-3-decanone
• Gingerol (generic term)
• CAS: 23513-14-6

Origin and location

Present at 1-3% in the rhizome of fresh ginger. Concentration varies depending on: variety, growing conditions, extraction method, post-harvest treatment.

Documented mechanisms of action

1. NF-kB inhibition

[6]-gingerol stabilizes IκBα and prevents phosphorylation by IKK → NF-kB remains sequestered in the cytoplasm → ↓ expression of TNF-α, IL-6, IL-1β, COX-2.

2. COX-2 inhibition

Similar effect to selective NSAIDs (Coxibs) but less potent and with fewer gastric side effects.

3. TRPV1 modulation

Action on TRPV1 ion channels, involved in nociception and thermoregulation.

4. Anti-nausea effect

Partial antagonism of 5-HT3 receptors, similar to ondansetron (but weaker).

5. Mild antiplatelet effect

Partial inhibition of platelet cyclooxygenase and thromboxane A2.

Major clinical studies

Study	Effect
Black 2010 (n=74)	-25% post-exercise muscle pain
Daily 2015 (meta-analysis)	Effective anti-nausea for chemotherapy
Phytotherapy Research 2014	Acute migraine: effect equivalent to sumatriptan
Mashhadi 2013	-40% inflammatory markers post-exercise

Conversion to [6]-shogaol

During thermal dehydration (cooking, drying, high-temperature pasteurization), [6]-gingerol loses a water molecule and becomes [6]-shogaol—a related molecule but with a different pharmacological profile (less anti-inflammatory, more prokinetic).

Pharmacokinetics

• Intestinal absorption: moderate (oral bioavailability ~10-20%)
• Metabolism: hepatic glucuronoconjugation primarily
• Plasma half-life: 2-3 hours
• Excretion: mainly urinary (metabolites)

[6]-Gingerol in INTI

INTI uses fresh organic ginger to preserve an optimal concentration of [6]-gingerol. Pasteurization is controlled to limit conversion to shogaol.

Related links

• Curcumin
• Piperine
• NF-kB
• Chronic inflammation guide