Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Eucalyptus oil contains eucalyptol (1,8-cineole) as its primary bioactive compound, comprising 70-85% of the oil. It works by activating cold-sensitive TRPM8 receptors and inhibiting inflammatory enzymes to clear respiratory passages and reduce inflammation.
Reported Benefits (Provisional)
Origin & History
Eucalyptus oil is an essential oil extracted from the leaves of the Eucalyptus globulus tree, native to Australia. The oil is produced through steam distillation, capturing its distinctive, refreshing aroma and therapeutic properties.
Research Narrative (Provisional)
Studies indicate eucalyptus oil may help with respiratory conditions due to its anti-inflammatory and decongestant properties, though more research is needed.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Eucalyptus oil is a concentrated volatile essential oil, not a nutritional food ingredient, and thus contains negligible macronutrients (0g protein, 0g carbohydrates, ~0g dietary fiber). Caloric content is approximately 884 kcal/100ml as a pure lipid-phase oil, though it is never consumed in such quantities. Key bioactive compounds include: 1,8-cineole (eucalyptol) as the dominant constituent at 70-90% of total composition, which is responsible for most pharmacological activity; alpha-pinene (2-9%), contributing additional anti-inflammatory and bronchodilatory effects; limonene (0.5-4%), offering antioxidant properties; p-cymene (1-3%), with antimicrobial activity; camphene (0.1-0.5%); and gamma-terpinene (0.3-1%). Trace phenolic compounds include caffeic acid derivatives and tannins (ellagitannins) in the leaf extract form. Flavonoids such as quercetin and rutin are present in leaf preparations at approximately 0.5-2mg/g dry weight but are largely absent in the distilled essential oil. Minerals found in eucalyptus leaf include calcium (~900mg/100g dry leaf), potassium (~600mg/100g), magnesium (~130mg/100g), and iron (~8mg/100g), though these are not transferred to the distilled oil. Bioavailability note: 1,8-cineole is rapidly absorbed transdermally and via inhalation, reaching peak plasma concentrations within 20-30 minutes of inhalation exposure; oral bioavailability is significant but internal use is restricted due to toxicity thresholds above 3.5mg/kg body weight.
Reported Mechanism (Provisional)
Eucalyptol (1,8-cineole) activates TRPM8 cold-sensitive receptors in respiratory tissues, creating a cooling sensation and promoting mucus clearance. The compound inhibits cyclooxygenase and lipoxygenase enzymes, reducing inflammatory mediators like TNF-α and IL-1β. Additionally, eucalyptol modulates calcium channels and enhances ciliary beat frequency in bronchial epithelium.
Clinical Narrative (Provisional)
Randomized controlled trials with 200-400 participants show eucalyptus oil inhalation improves forced expiratory volume by 20-30% within 30 minutes. Topical applications in studies of 50-100 subjects demonstrate 25-40% reduction in muscle pain scores compared to placebo. Most research involves short-term use (1-14 days) with limited long-term safety data. Evidence quality is moderate for respiratory benefits but limited for other claimed effects.
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